Which of the following statements is true?
1 nitrogen leaves the atmosphere through precipitation.
2 carbon dioxide is released into the atmosphere through plant leaves.
3 carbon dioxide is inhaled by animals.
4 most ozone is found in the lower atmosphere.

Astudent is given an assignment to demonstrate diffraction. he takes a photograph of a straw in a glass of water. the straw appears bent at the water level. which best describes this example? a) this is a good example of diffraction. b) this is an example of dispersion and not diffraction. c) this is an example of refraction and not diffraction. d) this is an example of reflection and not diffraction.

Which feature of a heating curve indicates a change ofn state

Which features on mars point to the possibility of liquid water on the planet? impact craters with sharp rims volcanic cones with craters gullies and stream-like channels mountain ranges with faults