Unlike venus and mars, earth's atmosphere is primarily composed of oxygen and nitrogen. why is the composition of earth's atmosphere different from the composition of the atmospheres of venus and mars? a. earth has life, while venus and mars do not. b. venus and mars are slightly smaller than earth. c. venus, mars, and earth all have similar chemical compositions. d. venus and mars have different chemical compositions from earth.

D

Explanation: The atmosphere in Venus is primarily composed by carbon dioxide (CO₂), about 2% of nitrogen (N₂) and less than 1% of Oxygen (O₂), while in Mars, besides having almost the same amount of carbon dioxide and nitrogen, it also has argonium (Ar) in its composition. Having this in mind, it's easy to notice that Earth's atmosphere and the other two planets differ in its chemical compositions, as we can see in alternative D.

the potatoes have high sugar concentrations and although these potatoes were different we could seethe effects that their sugar concentrations had in different environments. for example, the potatoes in sample a, were placed in pure water. this created a hypertonic environment and caused the potatoes to draw in water from its surroundings. we saw the opposite happen with the potatoes in sample b when placed in the sodium chloride solution. the potatoes in this case were in a hypotonic solution and therefore lost water to their surroundings.

i think the answer is c hope this