Answer the following question given this paragraph: With less ozone in the stratosphere, more UV rays reach the ground. More UV rays increase skin cancer rates. Just a 1 percent loss of ozone causes a 5 percent increase in skin cancer. More UV rays also harm plants and phytoplankton. As a result, they produce less food. This may affect entire ecosystems. 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)
Answer the following question given this paragraph: The intensity of an earthquake can be determined in many ways. The Mercalli Scale identifies the damage done and what people feel, the Richter Scale measures the height of the largest seismic wave, and the moment magnitude scale measures the total energy released by an earthquake. 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: Answer the following question given this paragraph: Light slows down when it enters water from the air. This causes the wave to refract, or bend. Q: What causes light to refract? Choices: - speeding up - blinking - bending - slowing down A:
Ans: slowing down
(Q).
Answer the following question given this paragraph: Nitrogen-fixing bacteria change nitrogen gas from the atmosphere to nitrates in soil. 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:Answer the following question given this paragraph: Diseases of the endocrine system are relatively common. An endocrine disease usually involves the secretion of too much or not enough hormone. When too much hormone is secreted, it is called hypersecretion. When not enough hormone is secreted, it is called hyposecretion. 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: Answer the following question given this paragraph: animals exposed to similar levels of urea. Sharks are cartilaginous fish with a rectal gland to secrete salt and assist in osmoregulation. 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