Q: More uv rays reach the ground due to a decrease in what layer in the stratosphere? Choices: - troposphere - smog - gases - ozone A:
ozone

(Question)
Q: What measures the height of the largest seismic wave or earth quakes? Choices: - magnitude scale - tremor scale - The EF Scale - richter scale A:
(Answer)
richter scale

Ques: Q: What causes light to refract? Choices: - speeding up - blinking - bending - slowing down A:
Ans: slowing down

(Q).
Q: What type of bacteria change nitrogen gas from the atmosphere to nitrates in soil? Choices: - hydrophylic bacteria - multicellular bacteria - spiral bacteria - nitrogen fixing bacteria A:
(A).
nitrogen fixing bacteria

Ques:Q: An endocrine disease usually involves the secretion of too much or not enough of what? Choices: - enzyme - metabolite - sweat - hormone A:

Ans:hormone

Question: Q: What do sharks use to secrete salt to assist in osmoregulation? Choices: - ceramic gland - bladder gland - blood gland - rectal gland A:
Answer:
rectal gland