How many Oxygen atoms are present in this chemical equation: Na2O3?
Answer:
3
Explanation:
You can see how many atoms there are next to the element (O3)
When did people begin to notice that coastlines of continents fit together like puzzle pieces?
when satellites began taking pictures of Earth from space
when Alfred Wegener proposed the idea of continental drift
when early explorers traveled from Europe and Asia to the Americas
when geologists first started examining the fossil record of South America
Answer:
The 1500s
Explanation:
the1500s
As early as the1500s map makers were beginning to notice that the individual continents fit together like pieces of a jigsaw puzzle. It wasn't until 1912 that Alfred Wegener first proposed an acceptable hypothesis (continental drift) as an explanation
pls help due soon: The graph below displays barometric pressure data collected over a 7-day period. When did a low pressure system move through the area?
Answer:
I think its A
Explanation:
I think that because its when the graph gets the lowest
Joel claims that “Bright White Toothpaste” removes tooth enamel stains better than all other brands. Which of the following should be documented as evidence to support his claim?
1. The amount of toothpaste used
2. The shade of teeth before and after brushing
3. The type of toothbrush used to brush teeth
4. The size of tooth
Hello everyone, can someone help me out? I am being a dummy again
Answer:
D
Explanation: We can not see every star with our necked eye. But we come close with the Hubble space telescope. So D is correct.
You decide to make strawberry banana popsicles. What change in state will need to occur
Answer:
solid to liquid to ice i think
Explanation:
1.) The scientific name always consists of two words:
Group of answer choices
Genus and species
Family and species
Species and kindom
Domain and species
2.) Puma concolor is the scientific name for an American Mountain Lion, what is the species?
Group of answer choices
Puma
concolor
mountain lion
American mountain Lion
Look at the PDFs and then answer the question -3-
I"M GIVING BRANINLLEST TO THE BEST ANSWER UwU
Answer:
The cell will shrink and the water will go out of the cell
How does the chain go
Answer:
1. Mosquito larvae is eaten by minnows
2. Minnows eat some algae and mosquito larvae
3. Trout eat algae and minnows
4. Herons eat the trout
So, these are the animals in order.
1. Mosquito larvae
2. Minnows
3. Algae
4. Trout
5. Heron
Hope this helps you!
What is the complementary DNA sequence for the DNA strand above?
Answer:
The answer is D.
Explanation:
Giving BRANLIEST!!!
Answer: c
Explanation:
They are different organisms.
Answer:
c
Explanation:
i think
A chimpanzee and a pine tree have very little in common. However, because they are both living things, we can be certain that they both -use the sunlight to make their own food.travel with other members of their species.are made up of one or more cells.have a skeleton which allows them to move.
Answer: C. Are made up of one or more cells
Explanation: Good luck! :D
A chimpanzee and a pine tree have very little in common because they are both living things, and made up of one or more cells that is the first and third option, as they are both living forms of nature, and while the chimp is movable, the pine tree is not.
What is the significance of the animals and plants?The significance of animals and plants is that both have unique characteristics and equal importance in nature, such as the plants' ability to produce food through the process of photosynthesis and the animals' ability to keep the system clean, such as when some animals help in plant fertilization, maintain the carbon and oxygen cycles, and so on.
Hence, a chimpanzee and a pine tree have very little in common because they are both living things, and made up of one or more cells that is the first and third option, as they are both living forms of nature, and while the chimp is movable, the pine tree is not.
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ILL MARK BRANLIEST!! Green Algae, ferns, and pine trees are classified in the kingdom Plantae. These organisms share certain characteristics. Which of the following is a characteristic used to classify these organisms as plants. A. They produce flowers for pollination. B. They contain seeds for reproduction. C. They have an immune system. D. They engage in photosynthesis.
Answer:
It’s D
Explanation:
They engage Photosynthesis
Which statements describe a human-created mass extinction? Select three correct choices.
It results from the disappearance of entire species in a short time.
It results from the disappearance of a few organisms in a short time.
It is caused by the growth of the human population.
It is a type of long-term change.
It is a type of short-term change.
It is caused by a decrease in the introduction of nonnative species.
Answer:
A,C,D
Explanation:
Answer:
A,C,D
Explanation:)hope this helps have a great day!
Braniliest would be appreciated
How many Oxygen atoms are present in this chemical equation: 2CO2
Answer:
There are Four Oxygen atoms
Explanation:
Active transport is when molecules move against the concentration gradient
True or False
Answer:
this is true (:
Explanation:
Answer:
true
Explanation:
The transport of specific particles down their concentration gradient through a membrane by carrier proteins is known as facilitated diffusion. ... Facilitated diffusion moves molecules and ions against their concentration gradient, while active transport moves molecules and ions down their concentration gradient.
Which of the following is not true about sound waves.
A. Sound waves travel through medium.
B. Sound waves are invisible.
C. Sound waves can move through water.
D. Sound waves can move through a vacuum.
Answer:
D. Sound waves can move through a vacuum.
Explanation:
Sound waves can move through a vacuum is an incorrect statement.
• Sound is a kind of energy produced by vibrations. These vibrations generate sound waves that move via the mediums like water, air, and wood.
• The sound waves are not visible as it is a form of energy, sound waves generate movement in the object, which continues till the particles run out of energy.
• A sound wave mediates its energy through particle interaction, and a sound wave cannot travel via a vacuum, this shows that sound is a mechanical wave.
Thus, sound waves cannot move through a vacuum. Option A is not true.
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why are butterflies important? What are they doing to help nature?
Answer: they pollinate and help flowers grow.
Using the image in the previous question, calculate the amount of force that the truck applied to the car if the truck was accelerating at a rate of 5 m/s2
1. What formula would you use?
2. Calculate the force of the truck hitting the car, use the correct unit for force:
3. Which law of motion supports your answer?
Answer:1st law
Explanation:bc
ILL MA K BRANLIEST!!
Answer:
Fungi
Explanation:
I just worked on this
Answer:
Fungi
Explanation:
Can someone help me please i only have a few min-
Answer:
I think it c.
Explanation:
I am not for sure
What is a triglyceride? (Site 2)
Answer:
in explanation
Explanation:
an ester formed from glycerol and three fatty acid groups. Triglycerides are the main constituents of natural fats and oils, and high concentrations in the blood indicate an elevated risk of stroke.
Answer:
It is a type of fat found in your blood ;)
Explanation:
A planet that has a solid, rocky surface. Terrestrial planets tend to be smaller than gas giants.
Answer: That is true
Explanation:
Answer:
True
Explanation:
Terrestrial planets tend to be smaller than gas giants.
If this was helpful please mark brainliest. Have a beautiful day.
Pls help due soon: Why is a low-pressure system generally associated with cloudy and rainy weather?
What happened as the mass of the sun increased during the formation of the solar system?
Answer:
The Sun and the rest of the solar system formed from a giant, rotating cloud of gas and dust called a solar nebula about 4.5 billion years ago. Most of the material was pulled toward the center to form our Sun, which accounts for 99.8% of the mass of the entire solar system.
Explanation:
Hope this helps!! i am trying to be brainliest
The increase in gravitational pull, which caused the surrounding gas and dust to be pulled towards the center of the developing solar system.
What is the Solar system?As the mass of the sun increased during the formation of the solar system, several important changes occurred. One of the most significant changes was the increase in gravitational pull, which caused the surrounding gas and dust to be pulled towards the center of the developing solar system. As a result, the temperature and pressure at the center increased, eventually reaching a point where nuclear fusion began and the sun became a star.
The increase in mass also had an impact on the orbits of the planets. As the gravitational force of the sun increased, it caused the orbits of the planets to become more stable and circular, rather than elliptical or irregular. This stability allowed the planets to maintain their orbits over billions of years, contributing to the long-term stability of the solar system.
In addition, the increase in mass allowed the sun to retain more of the lighter elements, such as hydrogen and helium, which were abundant in the early solar system. This abundance of lighter elements contributed to the formation of the gas giant planets, such as Jupiter and Saturn, which have massive hydrogen and helium atmospheres.
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What is the effect is a beam of light hits a green leaf?
When light strikes a green leaf, most of the green spectrum is reflected and most of the other colors are absorbed.
what is light?We can see light as a sort of energy. The sun provides some illumination. The other light is artificial. Man-made light is created by converting another type of energy, such as electricity, into light energy. From a source, light travels in a wavy beam to whatever it encounters. Each hue is represented by a tiny wavy beam on the beam. A light beam travelling through the air that contains all of the hues appears to be clear.
What is reflection?When a light beam strikes an object, such as tree leaves or an apple, the color of the object influences the smaller color beams inside the light beam. All color rays except green are absorbed by the green leaves. Only the green beam is reflected back, thus the leaves appear green to our eyes. Except for red, the apple absorbs all color beams. Only the red beam is reflected back, thus the apple appears red to human eyes. This is referred to as reflection.
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Describe how an electromagnetic wave carries energy from place to place. Your description should include the terms electric field, magnetic field, and perpendicular.
Answer:
In electromagnetic waves, energy is transferred through vibrations of electric and magnetic fields. In sound waves, energy is transferred through vibration of air particles or particles of a solid through which the sound travels.
brainliest pls
Answer:
In electromagnetic waves, energy is carried through vibrations of electric fields and magnetic fields. The fields The vibration of electric fields is perpendicular to the vibration of magnetic fields and the vibration of electric and magnetic fields is perpendicular to the direction in which light travels.
Explanation:
i have posted this 3 times can some one plz help?
ILL MARK BRANLIEST!!!
What is the fluid found in the extracellular matrix that holds cells together as tissue and allows them to communicate with one another?
The fluid inside of the Extracellular Matrix is Extracellular Fluid. Extracellular Fluid is also called ECF. ECF is mostly tissue fluid. It is also made up of a large amount of intravascular fluid. The remaining smaller amount of ECF is transcellular fluid.
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