Explanation:
Option D is the correct option.
Answer:
d. keystone species
Explanation:
is one that plays a pivotal role in ecosystems, e.g., species of palm or fig trees that maintain all the vertebrate frugivores in a Peruvian rainforest for 3 months of the year when other trees are not in fruit
voila. good answer no?
If you're referring to water, it's not required that you drink 8 glasses, just enough that you keep yourself hydrated.
Southern hemisphere i think
A and B smog is a type of air polution
