Answer:
The answer is A
Explanation:
The answer is A because the sun is not a producer and only helps producers.
I would say C.
Dams don't use any chemical means to get their energy output, so B and D are out. A converts to potential energy which can't produce electricity without being set in motion, so it doesn't work. That leaves B, which makes sense. Potential energy to mechanical energy to electrical energy.
Answer:
C. Implement a biometric reader at the datacenter entrance and require passage through a mantrap.
Explanation:
The first step this installation should do is to limit access to only authorized persons. The safest way to do this is to use a biometric reader at the datacenter entrance, so in addition to just entering authorized persons, it would be possible to verify each individual's identity before allowing access to the server room and datacenter. The facility should also use a mantrap to separate safe areas from unsafe areas, so it can also limit access to the facility and decrease the chances of users tailgate behind other uses.
1. Any group of organisms are related by descent from a common ancestor.
2. There is a bifurcating pattern of cladogenesis.
3. Change in characteristics occurs in lineages over time.