Question 3 of 5 A student is using a terrarium like the one shown here to study the cycling of water in an ecosystem. SL Which observation would be the best evidence of the water cycle? Drain

the answer is:

carbon dioxide

they have identical fossils of organisms that have evolved over time.

both have animal fossils preserved in them due to weathering and erosion.

they contain different fossils because life on earth has changed through time.

the fossils in them were formed on the surface of earth due to exposure to sunlight.

answer denitrification;