In urban areas, this gas from internal-combustion engines may contribute to rainfall acidity.
A. sulfur gases
B. ozone
C. radon
D. nitrogen oxides
Answer: D
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Use the geologic cross section to determine the age of rock layer D as precisely as possible
A) It is 40 million years old. B) It is between 39 million years old and 25 million years old. C) It is between 39 million years old and 17 million years old. D) It is older than 17 million years old.
Imagine that the temperature of the sun changed. Describe or discuss some of the effects that this might have on the Earth's energy budget and the Earth's climate.
What will be an ideal response?
The conditions of the deep ocean, such as eternal darkness, cold temperatures, hypersalinity, and high pressure, limits
the extent of deep-ocean floor communities. a. True b. False
A vertical cross section of soil extending from the surface to the deepest extent of plant root activity or to the regolith and bedrock is known as a
A) soil horizon. B) soil profile. C) pedon. D) polypedon.