Answer:
Air pollution harms human health and the environment. In Europe, emissions of many air pollutants have decreased substantially over the past decades, resulting in improved air quality across the region. However, air pollutant concentrations are still too high, and air quality problems persist. A significant proportion of Europe’s population live in areas, especially cities, where exceedances of air quality standards occur: ozone, nitrogen dioxide and particulate matter (PM) pollution pose serious health risks. Several countries have exceeded one or more of their 2010 emission limits for four important air pollutants. Reducing air pollution therefore remains important.
Air pollution is a local, pan-European and hemispheric issue. Air pollutants released in one country may be transported in the atmosphere, contributing to or resulting in poor air quality elsewhere.
Particulate matter, nitrogen dioxide and ground-level ozone, are now generally recognised as the three pollutants that most significantly affect human health. Long-term and peak exposures to these pollutants range in severity of impact, from impairing the respiratory system to premature death. Around 90 % of city dwellers in Europe are exposed to pollutants at concentrations higher than the air quality levels deemed harmful to health. For example, fine particulate matter (PM2.5) in air has been estimated to reduce life expectancy in the EU by more than eight months. Benzo(a)pyrene is a carcinogenic pollutant of increasing concern, with concentrations being above the threshold set to protect human health in several urban areas, especially in central and eastern Europe.
"Air pollution is causing damage to human health and ecosystems. Large parts of the population do not live in a healthy environment, according to current standards. To get on to a sustainable path, Europe will have to be ambitious and go beyond current legislation."
Explanation:
Describe the temperature of the continental crust
pls pls pls help!! i’ll give brainliest
Answer:
materials move against a concentration gradient
Which plays a major role in determining which genes are expressed in a cell?
A. transcription factors
B.nothing, it is random
C.translating into spanish
D.your mother
Answer:
A.
Explanation:
A crucial component of controlling transcription is played by proteins known as transcription factors. These crucial proteins aid in identifying the genes that are active in each of your body's cells. Thus, option A is correct.
What is the role of transcription factors?Proteins called transcription factors control the expression of genes. They affect the transcription process, in which DNA serves as a template to create mRNA, which in turn affects protein synthesis.
Since many transcription factors are either tumor suppressors or oncogenes, cancer is linked to their mutations or abnormal regulation.
It is known that three transcription factor groups play crucial roles in human cancer.
Therefore, transcription factors play a major role in determining which genes are expressed in a cell.
Learn more about transcription factors here:
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look at the following images, then in your own words, describe how they are different.
Answer:
they have different locations of where the foods are located
(brainliest if right!) How is the dispersive model different from the semiconservative model of DNA replication?
1. In the dispersive model, each strand of both daughter molecules contains a mixture of old and newly synthesized DNA, and in the semiconservative model, each new double helix consists of one old and one new strand.
2. In the dispersive model, the old double helix is degraded, and in the semiconservative model half of its nucleotides are used in the construction of two new double helices.
3. In the dispersive model, one of the two resulting double helices is made of two old strands, and in the semiconservative model the other is made of two new strands.
4. In the dispersive model, one strand of the new double helix is made of DNA, and in the semiconservative model the other strand is made of RNA.
PLS HELP!! brainliest + extra points! it's easy but i didn't study tbh:)
Answer:
Guanine to Cytosine
Explanation:
G always matches C
A always matches T
Hope it helps
Plz mark Brainiest.
Why do candles extinguish when a lid is closed?
Answer:
fire needs oxygen to burn, when you take that oxygen away by putting a lid on it the fire goes out.
Explanation:
Answer & Explanation:
candles extinguish when a lid is closed because fire needs oxygen to sustain its energy so when the lid is closed no oxygen is coming in, so the candles with the fire slowly extinguish
frank has type A blood (AA or AO) and margarita has type B (BB or BO) blood. They have a new baby. Vinnie, with type O blood. Is this possible or should frank accuse margarita of cheating?
Answer:
It is technically possible, if and only if, both parents have AO and BO blood.
Explanation:
the only way (most of the time) a child can get O blood is if both genes accepted by the parents are O. That would mean both parents would have to have O recessive genes.
_trophs often make their own food using sunlight,
carbon dioxide, and water.
Any body please help please thank you so muchhhhh
Answer:
Autotrophs
Explanation:
Hope this is helpful
(GIVING BRAINLIEST!!)
Describe the following natural disasters:
• Hurricanes:
• Tornadoes:
• Earthquakes:
• Floods:
• Wildfires:
Answer:
Hurricanes are large, swirling storms. They produce winds of 119 kilometers per hour (74 mph) or higher. That's faster than a cheetah, the fastest animal on land. Winds from a hurricane can damage buildings and trees.
tornado is a violent rotating column of air extending from a thunderstorm to the ground. The most violent tornadoes are capable of tremendous destruction with wind speeds of up to 300 mph. They can destroy large buildings, uproot trees and hurl vehicles hundreds of yards. They can also drive straw into trees.
Earthquake is a term used to describe both sudden slip on a fault, and the resulting ground shaking and radiated seismic energy caused by the slip, or by volcanic or magmatic activity, or other sudden stress changes in the earth.
A flood is an overflow of water that submerges land that is usually dry. In the sense of "flowing water", the word may also be applied to the inflow of the tide. Floods are an area of study of the discipline hydrology and are of significant concern in agriculture, civil engineering and public health.
Wildfires are fires that burn out of control in a natural area, like a forest, grassland, or prairie. They often begin unnoticed. They spread quickly, and can damage natural resources, destroy homes, and threaten the safety of the public and firefighters. Humans cause most wildfires.
Hurricanes: Hurricanes form when warm air over the water rises, it is replaced with cool air, if there is enough warm water storm clouds and wind speed can grow and cause the hurricane.
Tornadoes: Tornadoes form when warm air collides with cold air.
Earthquakes: a sudden and violent shaking of the ground, sometimes causing great destruction, as a result of movements within the earth's crust or volcanic action.
Floods: an overflowing of a large amount of water beyond its normal confines, especially over what is normally dry land.
Wildfires: A wildfire, bushfire, wildland fire or rural fire is an unplanned, unwanted, uncontrolled fire in an area of combustible vegetation starting in rural areas and urban areas
Shamus complains that he isn’t feeling well, he thinks a cold/flu is coming on. He takes cold medicine and lays down. In an hour or two, he decides the medication isn’t working, so he takes another dose, thinking more will work better. Shamus takes one more dose of cold medication, 3 hours after his second dose and finally settles down for bed. In the morning, Shamus is found dead in his bed by his roommate.
Answer in terms of livor and rigor, what stages and where in the body is it present
Answer:
The common cold and the flu may seem very similar at first. They are indeed both respiratory illnesses and can cause similar symptoms. However, different viruses cause these two conditions, and your symptoms will gradually help you differentiate between the two.
Both a cold and the flu share a few common symptoms. People with either illness often experience:
a runny or stuffy nose
sneezing
body aches
general fatigue.
As a rule, flu symptoms are more severe than cold symptoms. Another distinct difference between the two is how serious they are. Colds rarely cause additional health conditions or problems. The flu, however, can lead to sinus and ear infections, pneumonia, and sepsis. To determine whether your symptoms are from a cold or from the flu, you need to see your doctor. Your doctor will run tests that can help determine what’s behind your symptoms. If your doctor diagnoses a cold, you’ll likely only need to treat your symptoms until the virus has had a chance to run its course. These treatments can include using over-the-counter (OTC) cold medications, staying hydrated, and getting plenty of rest.If you have the flu, you may benefit from taking an OTC flu medicine early in the virus’ cycle. Rest and hydration are also very beneficial for people with the flu. Much like the common cold, the flu just needs time to work its way through your body.
Explanation:
what is a tetrad? snd why are they important feature of mitosis
Answer: a group or set of four
Explanation: tetrad occurs during the first phase of meiosis
Answer:
a group or set of four
Explanation:
How are the three international conflicts similar and how are they different?
Answer:
what's the question? It is not showing anything expect for "How are the three International conflicts similar and how are they different."
2. Wolves have genes that give them a very powerful sense of smell much more
powerful than humans, this is an adaptation by natural selection. The wolves that
reproduced more offspring with a better sense of smell thereby increasing the
frequency of those genes in the population that survived longer. Give an example of
adaptations in other organisms that may have resulted from variations that were
favored by natural selection.
Answer:
A good example may be represented by different shapes and sizes of beaks in finches living on different Galapagos islands
Explanation:
According to the evolutionary theory proposed by Darwin, natural selection is a mechanism that acts on heritable phenotypic variation among individuals within a population. Genetic variation can be considered as the primary source of heritable phenotypic variation. Those organisms that are better adapted for a particular environment will have more chances to survive and reproduce, thereby passing these heritable traits to the next generation. For example, during his work, Darwin observed that the shape and size of beaks in finch species from different islands in the Galapagos archipelago varied as a consequence, i.e., as an adaptation, to the availability of food resources present in each island.
An example of adaptations in other organisms that may have resulted from variations that were favored by natural selection. - The light-colored mice are an adaption favored by natural selection as they were able to live longer.
Adaptations are physical or behavioral traits that make an organism better suited to its environment. The inheritable variation comes from random mutations.
the example of such variations caused by natural selection are:
The Deer mouse adapted to the environment by developing a lighter color.The light-colored mice were able to live longer.Thus, The light-colored mice are an adaption favored by natural selection as they were able to live longer.
Learn more:
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Water is a
compound. How do these images of water illustrate
this? Provide evidence to support the claim. Explain
your reasoning
Answer:
Is made up of different kinds of atoms chemically combined.
Explanation:
PLEASE PLEASE PLEASE HELP ME WITH THIS!! ONCE I FIGURE OUT HOW I'LL MARK BRAINLIEST (or however you spell it)!!
Answer:
1st segment: 3rd answer choice
2nd segment: 1st answer choice
3rd segment: 4th answer choice
4th segment: 2nd answer choice
5th segment: 5th answer choice
1
Which of the following can be used to produce electrical energy?
OA. generators
B.
solar cells
C.
batteries
D.
all of these
At Happy Harry’s Laundromat, the dryer costs $1.50 for 10 minutes. At Jolly Judy’s Laundromat the dryer costs $2.25 for 15 minutes. Which laundromat offer the better deal?
based on what you have just read why is studying atoms and their parts and particles helpful to people
Answer:
Studying atoms helps people by providing research to common problems found in our environment, universe, and ourselves. Such as cleaning up oil spills, identification of atoms in our universe, etc.
Explanation:
1. Janica placed an ice cube in her thermos of hot coffee. Which of the following
describes the change to the energy in the system?
A. Energy was transferred from the coffee to the ice cube, but the total energy in the
system remained constant.
B. Energy was transferred from the ice cube to the coffee, but the total energy in the
system remained constant.
C. Energy was transferred from the ice cube to the coffee, and the total energy in the
system decreased.
D. Energy was transferred from the coffee to the ice cube, and the total energy in the
system increased.
Answer:
I think A
Explanation:
Why does our body need to turn ADP into ATP?
What are two reasons why cell division is important to living things?
Answer:
Explanation:
repair of damaged tissues healing and regeneration,Hope this helps
what characteristics describes an old river
Answer:
Rivers possess different features as they age. Old rivers usually have a low stream (gentle) gradient and low erosive energy. They usually have broad U shape, the water is usually brown and they have flood plains. Seasonal floods are also common.
Distilled water (H2O) can be made from tap water by removing dissolved minerals and various other chemicals. How should each type of water be classified
Describe what happens to the egg during the menstrual cycle on day 14. _______________________
Answer:Ok so A few days before Day 14, your estrogen levels peak and cause a sharp rise in the level of luteinizing hormone (LH). LH causes the mature follicle to burst and release an egg from the ovary, called ovulation, on Day 14.At about day 14 in the menstrual cycle, a sudden surge in luteinizing hormone causes the ovary to release its egg. The egg begins its five-day travel through a narrow, hollow structure called the fallopian tube to the uterus. hope this helps have a nice night ❤️❤️❤️
Explanation:
Answer: Because However, during days 10 to 14, only one of the developing follicles forms a fully mature egg. At about day 14 in the menstrual cycle, a sudden surge in luteinizing hormone causes the ovary to release its egg. The egg begins its five-day travel through a narrow, hollow structure called the fallopian tube to the uterus. The egg travels down the fallopian tubes. If pregnancy doesn't occur, the egg is reabsorbed into the body. Levels of oestrogen and progesterone fall, and the womb lining comes away and leaves the body as a period (the menstrual flow). The time from the release of an egg to the start of a period is around 10 to 16 days.
Explanation:
why are advantageous traits more likely to be passed onto offspring
Answer: Variations of traits causes those better suited to the environment to survive and reproduce. ... Why are advantageous traits more likely to be passed onto offspring? Because they are more likely to survive and reproduce.
Explanation:
What id one watt equal to?
Adenosine triphosphate, or ATP, is primarily used as
in living organisms.
O A.
a blood coagulant
O B.
a source of energy
O C.
a reproductive enzyme
O D.
a muscle relaxing hormone
Answer:
A source of energy
Explanation:
Fill In The Blank
What is the strongest acid listed in 2-2?
What is the weakest acid listed in 2-2?
What is the strongest base listed in 2-2?
Answer:
Strongest acid is hydrochloric acid
Weakest acid is rainwater
Strongest base is sodium hydroxide
Explanation:
pH is defined as the measure of hydrogen ion concentration in a particular solution. pH values seen between 0 and 1 are actually known to be strongest acids. Weakest acids are the ones that move towards neutrality. The neutral pH value is 7.0.
Looking at their pH values, we will discover that hydrochloric acid is the strongest acid. Rainwater is weakest acid because it moves towards neutrality. Sodium hydroxide is the strongest base.
In pH, values between 0-6 are referred to being acidic, 7 is neutral and while 8-14 are basic.
Answer:b
Explanation:
A biology student was observing a specific type of cell. It had DNA,
ribosomes, and cytoplasm. What type of cell was she probably
observing
Answer:
she was probably observing a prokaryotic cell.
Explanation:
:)