The answer is B. Gravitational potential energy.
Hope this helps
Answer:
C. examine DNA
Explanation:
Bone structures can be very different sizes Not A
Humans have different hair color and that doesn't make a red hair person not human Not B
people can be different weights and that doesn't make them not human Not D
Answer:
You should always put the low power objective lens into the center place.
Explanation:
- Always cover the microscope with the supplied dust cover when not in use.
- Store in a dry place.
- In humid or moist environments, it is advisable to store the microscope in a waterproof container with a drying agent.
- Do not touch the optical lens with bare fingers.
- Do not store the microscope in direct sunlight.
