Answer:
B. processes to make them take longer than a human's lifetime
The correct answer is C. it takes up space and has mass.
This is something which is true of all matter. A is incorrect because it can be made of other things as well. B is incorrect because it can be found elsewhere as well. D is incorrect because it can take any form it wants - not just liquid or gas.
Answer: Anaerobic, Aerobic
Explanation: Aerobic means with Oxygen,while Anaerobic means without oxygen. Aerobic exercise like running,bike ride,walking increases blood flow. In Aerobic exercise with oxygen,your body produces the muscle need to perform a needed exercise. While in Anaerobic exercise without oxygen means oxygen demand is greater than oxygen supply.
Answer:
Uracil
Explanation:
Uracil is in RNA thymine is in DNA
