True. ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Answer:
A sedimentary rock
Explanation:
Sedimentary rocks are formed by the accumulation of sediments a.k.a small particles such as seashells over a long period of time :)
Explanation:
Given the importance of oxygen for animals, researchers suspected that a sudden increase in the gas to near-modern levels in the ocean could have spurred the Cambrian explosion. ... This supported the idea of oxygen as a key trigger for the evolutionary explosion.
Transpiration is the passage of of watery vapor from a living body (as of a plant) through a membrane or pores