When an object falls with constant acceleration, there is a continual change in
A. velocity.
B. distance covered each second.
C. both of these
D. none of the above
Answer: C
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Acid rain has a negative impact on ecosystems and accelerates the chemical weathering of concrete structures and marble building materials. Which of the following compounds released by human activity are responsible for acid rain?
A. ozone and nitrogen oxide B. sulfur dioxide and carbon dioxide C. ozone and carbon monoxide D. sulfur dioxide and nitrogen oxide E. carbon monoxide and carbon dioxide
Epidemiological studies rely on comparing the health of a(n)
A. experimental group and a diseased group. B. dose group and a response group. C. nervous system group and a control group. D. dose group and a control group. E. experimental group and a control group.
________ is an erosional contact between tilted, older strata below and horizontal, younger strata above
A) A disconformity B) An angular unconformity C) Inverse bedding D) Cross cutting
All of the following are evidence supporting the theory of plate tectonics except for ________
A) changes in the Moon's orbit due to shifting plates B) hot spots C) ocean floor drilling D) paleomagnetism