Describe TWO environmental consequences, other than those related to the loss of boreal forest habitat, that result from the extraction of bitumen or the transportation of synthetic oil to customers.
Answer: The greenhouse gas emissions from the extraction of bitumen and the use of large quantities of water.
Explanation:
Bitumen is a natural flammable organic matter formed from kerogen in the process of petroleum generation, which is soluble in carbon disulfide. Asphalt and mineral wax are examples of hydrocarbons which are part of bitumen. Conventional oil is extracted by wells while oil sands deposits are extracted using surface mining sectioning techniques, or are flowed to wells by in situ techniques that reduce bitumen viscosity by steam and/or solvents. So, unlike crude oil extracted in oil wells, bitumen requires an open-pit mining operation, in which large tracts are washed with a mixture of water and chemicals to separate the bitumen from a mixture of sand and clay.
Two consequences of this practice are:
The greenhouse gas emissions from the extraction of bitumen are larger than the extraction of conventional oil. The emissions produced contribute to enhance the greenhouse effect and cause global warming. The greenhouse effect occurs when certain gases retain part of the energy emitted by the earth's soil when heated by the sun's radiation. This phenomenon occurs naturally, and thanks to it, the average temperature of the Earth is about 14º C (57.2 °F). The problem occurs when these greenhouse gases increase in the atmosphere and the amount of energy that is not released into space also increases and, with it, the Earth's temperature. The extraction of bitumen from oil sands requires the use of large quantities of water, and even though water used here can be recycled, only a small amounts is returned to the natural cycle. Also, spills from the transportation of the oil could damage soils and waterways, increasing water pollution. This toxic water could get into surface.Which experiment should be conducted as a field investigation?
Which of the following is a potential benefit of a disturbance to a
community?
O a decrease in availability of resources
o the community may be unable to recover
O some species depend on disturbances
O links between the native species break
Answer:
I'm pretty sure it is 'some species depend on disterbences'
The potential benefit of a disturbance to a community is that some species depend on disturbances.
Importance of disturbance in a communityCommunity disturbance can be defined as a force, which may be biological or non biological, that results in mortality of organisms or loss of biomass.
Different types of disturbance that can affect a community include:
fires, storms, diseases, volcanic eruptions, earthquakes, contaminant spills, and land clearing.Some species depends on community disturbance because the cleared habitat caused by the disturbance leads to species movement into the newly cleared area, that is, secondary succession.
Learn more about secondary succession here:
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What is the function of the small, dark organelles labeled E?
They assemble amino acids into proteins.
Answer:
It is a ribosome They produce proteins for the cell.
Explanation:
Hope this helps :)
After 3 years, the person dried out the avocado tree and weighed it. There were 1950g of dry roots, stem and leaves. Where did most of the atoms
making up the dry mass of the plant come from?
The soil
Sunlight
The air
Water
The seed
Digestion of dietary fats _____. a. occurs primarily in the large intestine b. occurs primarily in the stomach c. involves the small intestine but not the pancreas d. results in triglycerides, phospholipids, and sterols as end products e. requires bile and lipase
The answer of the question is option (b).
Digestion of dietary fats ocuurs majorly when it reaches to the small intestine.
which statements describe the process of scientific inquiry
Answer: Scientific inquiry involves similar processes and practices. Scientific inquiry involves asking questions about observations.
Explanation:
Answer:
can you please be specific
Which type of cell has free-floating DNA?
A. eukaryotic
B. prokaryotic
Answer:
Prokaryotic cells have free floating DNA
Answer:
B. prokaryotic
Explanation:
The prokaryotic cells has free-floating DNA. The option (B) is the answer.
This image shows the body being sectioned along what plane?
the answer choices. I know it is not midline
Frontal
Midline
Sagittal
Transverse
Answer:
Transverse
Explanation:
Answer: Frontal
Explanation:
What are 3 terms used to describe organisms such as humans?
PLEASE HELP BIOLOGY!! WILL GIVE BRAIN!!
Answer:
True
Explanation:
have a great day
Explanation:
If someone has blood type A, they must have at least one copy of the A allele, but they could have two copies. Their genotype is either AA or AO. Similarly, someone who is blood type B could have a genotype of either BB or BO. A blood test of either type AB or type O is more informative.
"Speaking of fossil fuels; the chart above shows the common uses for which fossil fuel?"*
Petroleum
Coal
Natural Gas
Nuclear
Answer:
coal
Explanation:
I need 20 characters so Im typing this in hope of filling the space
what are the 6 classification of sewing equipment
Answer:
what are the 6 classification of sewing equipment
Stitch classification according to ASTM
The chain stitch. Hand stitch. Double backstitch stitch. Multiple chain stitch. Cover stitch. Single Thread Double Topstitch Stitch.Explanation:
A geneticist wants to determine what mutation in a DNA molecule changed the structure of a specific protein. What would the scientist need to know before planning the investigation?
The normal sequence of bases that code for the protein
Whether the mutation was a substitution, insertion, or deletion
The total number of bases in the DNA molecule
How many thymine bases are in the DNA molecule
A mutation is any change in the sequence of DNA because of any reason such as deletion, insertion, etc. To determine the mutation in a DNA molecule changed the structure of a specific protein scientists should know the normal sequence of bases that code for the protein.
What is mutation?A mutation is a random change in the DNA sequence either due to insertion, deletion, or substitution.
By mutating a gene's code for making a protein, a variant can leads to a protein's improper functioning or to not being produced at all.
Scientists must mandatorily determine the normal base sequence of the protein code before investigating the mutation in the DNA sequence for a particular protein.
Thus, the correct option is A.
For more details regarding mutation, visit:
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is what do a fish eat scientific
Fish will mainly feed on small insects, crustaceans, leeches, worms, zooplankton, algae, and smaller fish.
Which characteristic is associated with winter as compared to summer?
Choose the correct answer.
noon sun lower in the sky
higher daytime temperatures
more daily hours of sunlight
longer days and shorter nights
Answer:
noom sun lower in the sky
Lab: Natural Selection
Assignment: Lab Conclusion Active
Prompt
Address the following points in paragraph form to write your conclusion.
1. Restate the overall purpose of the experiment. (Why did you do this experiment? What did it teach you?)
2. What were the major findings? (summarize the data you collected)
3. Was the hyposthesis supported by the data? (state your hypothesis and explain how your data relates to your hypothesis)
4. How could this experiment be improved? (If you did this again what could you do differently?)
5. What could be studied next after this experiment? (What else could you test to help you better understand this topic?)
DA
Answer:
sorry if i did not get it right : B
Explanation:
Which of the following is a subatomic particle located inside the nucleus of
an atom?
o
A. Electron
o
B. Neutron
C. lon
D. Positron
The answer is :
B. Neutron
What is an organism made of one cell called
Answer:
Unicellular organisms
Explanation:
Which of the following makes an argument for how genetic diversity provides an evolutionary advantage for a population?
O
A. Sexual reproduction provides an evolutionary advantage for populations since it decreases genetic diversity.
B. Sexual reproduction provides an evolutionary advantage for populations since it increases genetic diversity.
о
C. Asexual reproduction provides an evolutionary advantage for populations since it increases genetic diversity.
O D. Asexual reproduction provides an evolutionary advantage for populations since it decreases genetic diversity.
As we exercise, our body produces heat through the process of cellular respiration. Although our body temperature does increase, the temperature change is slow and we are able to maintain a homeostatic temperature. Which property of water explains why our body temperature is slow to change
Answer: Ability to moderate temperature
Explanation: the water is able to moderate temperature to maintain homeostasis. It tries to cool down when it is extremely hot and heat up while we are cold. If water didn’t have this property then we would not be able to live in places like New York or Massachusetts due to the extreme temperatures
Have a wonderful day
What is an organelle? Give three examples
how does competition limit the amount of individuals in populations?
Explanation:
Competition for resources like food and space cause the growth rate to stop increasing, so the population levels off. This flat upper line on a growth curve is the carrying capacity. The carrying capacity (K) is the maximum population size that can be supported in a particular area without destroying the habitat.
What leads to the changes in shape of the active site when pH changes?
A. more H+ interfere with the amino acid bonds
B. the OH- ions break apart the amino acids
Answer:
A. more H+ interfere with the amino acid bonds
Explanation:
Enzymes are also sensitive to pH. Changing the pH of its surroundings will also change the shape of the active site of an enzyme.
This contributes to the folding of the enzyme molecule, its shape, and the shape of the active site. Changing the pH will affect the charges on the amino acid molecules.
Answer: A. more H+ interfere with the amino acid bonds
As cattle, horses, and other livestock graze in a field, their movements stir up various insects. As the insects are stirred up, egrets follow the livestock to catch and eat the insects, leaving the livestock unaffected. Which of the following best describes the relationship between the egrets and the livestock?
Parasitism
Commensalism
Competition
Mutualism
Answer:
Commensalism
Explanation:
Commensalism means that two species interact; one of them benefits from the other while that other one is neither benefited nor harmed. This explains the relationship between the livestock and egrets.
Hope this helps :)
which of the followimg could be reasons why popultion sizes may reach and maintaim plateaus? choose the three that apply
Will mark as brilliant answer
Answer:
Below :D
Explanation:
So basically, this question is asking what will cause a species' population to reach a point where it stops increasing.
Lets think about what can cause a lack of increase?
A decrease can cause this.
Or a slow in the rate of increase.
Now lets look at our selectable answers and see if any of them would fall under these two things.
First up is fewer deaths.
Well, fewer deaths basically means less of a decrease in population.
This is the opposite of decreasing the populatin count, and would instead raise it.
Next we have a limit in food supply.
This would cause a organism to starve and die.
So this would cause a decrease in population count.
So B is one of the answers
Next up is competition with other species.
When two species compete for a sort of resources, one massivly dies out due to outcompetion, and loses the resources needed to survive.
So this would also cause a large decrease in population count.
This makes C one of the answers
Next is increase in birth rates.
This would cause more organisms to be born of a species, basically increasing the population count.
This is the opposite of a decrease in population.
Next we have competition for space.
This is very similar to answer C, and the outcompeted species dies out due to lack of space.
So E is one of the answers
Now, the next answer seems viable, because major storms can kill off organisms, like hurricanes, earthquakes, and volcanos for instance.
However, as seen in many organisms over history, while these major storms kill of organisms, they can recover.
So although major storms decrease populations, they dont actually limit them.
In the end:
B is correct
C is correct
E is correct
Hope this helps!
Which two statements below correctly describe one similarity and one difference between cellular respiration and photosynthesis?
Cellular respiration and photosynthesis both involve water.
Cellular respiration uses sugar and photosynthesis produces sugar.
Cellular respiration and photosynthesis both use light to produce energy.
Cellular respiration requires light energy and photosynthesis requires chemical energy.
A. Statements 1 and 2
B. Statements 1 and 4
C. Statements 2 and 3
D. Statements 3 and 4
Answer:
The answer is A.
In the equation of breakdown of glucose (cellular respiration) and photosynthesis the end product of both is water, oxygen and carbon (iv) dioxide. And both involve glucose in the chemical reaction.
Which best defines a gene?
A. A gene is a unit of protein that contains the
genetic code.
B. A gene is a unit of DNA that contains code
for the creation of one protein.
C. A gene is a unit of DNA that contains the
code for the creation of amino acids.
D. none of the above
Name some of the sites occupied by early farmers from the Neolithic culture
Some sites are:
Mesopatamia, and Epipalaeolithic,
What causes Tay Saches disease?
Answer:
Tay-Sachs disease is a rare genetic illness that is handed down from parents to their children.
It's caused by a lack of an enzyme that aids in the
digestion of fatty foods.
These fatty molecules, known as gangliosides, build up to hazardous amounts in the child's brain, affecting nerve cellfunction.
hope it helps
Explanation:
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