Plants exchange gas with the atmosphere. which statement accurately describes this process?
a. plants release carbon dioxide and take in oxygen through the stomata in leaves.
b. plants release oxygen and take in carbon dioxide through the xylem in leaves.
c. plants release carbon dioxide and take in oxygen through the xylem in leaves.
d. plants release oxygen and take in carbon dioxide through the stomata in leaves

Statement A accurately describes respiration in plants.  

In plant, gaseous exchange occurs with atmosphere during two process namely respiration and photosynthesis. The organ of respiration in plant is called as stomata. They are minor pore like structure located on the surface of the leaves.  

The oxygen which is present in the atmosphere enters the plant through the leaves and it is sent to other parts of the plant through diffusion mechanism. As the respiration process is completed, the carbon dioxide which is formed as the end product of the process, is exhaled out of the plant through the stomata.

that is a club

explanation:

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d concave shape of wave rock

explanation:

the concave shape of wave rock is a very good evidence that supports the evolution of earth due to chemical weathering. if we talk about structure of   wave rock, studies have estimated that it is around 2.7 billion years old. it also serves as the foundation of evidence that it was the place where australian continent began to form.

how the structure of wave rock was created?

studies suggest that structure of wave rock was created when the surrounded area was started to weather due to which deposition of material started on the part of land which now contains wave rock.

the structure of wave rock is considered to be one of the best-known landforms in australia. at the height of around 15 cm, there can be found flared slopes which formulate the margins of hyden rock. it is now assumed by geologists that wave rock was created by subsurface water-induced weathering and not by glaciers, waves or wind.

due to deposition of material over the period of long time, the wave rock became tougher and tougher due to weathering from surrounding terrain. this makes it a physical evidence that supports   the evolution of earth due to chemical weathering.

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