Question

Which statement gives an example that best demonstrates how the geosphere has affected the evolution of life on Earth?

Answer 1

Answer:

Option C

Explanation:

During early stage of development of earth and its atmosphere, the amount of carbon dioxide was negligible. Also, the atmosphere comprises of several harmful gases such as carbon mono oxide, formaldehyde etc. which were released as a product of geologic processes such as volcanic eruptions, rock weathering, iron oxidation etc. Since, geosphere and biosphere evolved simultaneously, the process of photosynthesis has initiated by that time and hence the abundant gases were used in it.  

hence, option C is correct

Answer 2

B, C and D correctly demostrate how evolution has changed animals and the interaction between organisms, but they aren't related to the GEOSPHERE.

A explains that spiders that live in caves (this part is the most important one, since it demostrates that the example mentiones a geopsheric aspect) lost their eyes since they can't see with them anyway.

Hope it helped,

BioTeacher101