Weathering because it's "wearing" down something to make sediment
Is they are random changes I believe they should be mutations
Answer:
B. Root is the correct answer
The energy role of a grizzly is that is is a omnivorous consumer because it is not a producer.
A grizzly bear's diet consist of both plants and animals as it relies on the food it eats for energy consuptions. It is incapable of producing energy with photosythesis, hence it is not a producer.
ANSWER
Mixture
Explanation: the air is composed of nitrogen and oxygen