Chapter 10 Flashcards
Day length varies with latitude.
True
The latitude of the equator is 90 degrees.
False (0 degrees)
There are five named lines of latitude.
True
It is possible for the sun to be at its zenith at the Arctic Circle
False
The two layers of our atmosphere that influence biological activities are the troposphere and mesosphere.
False (troposphere and stratosphere)
Earth’s average air temperature has increased by 1 degree in the past 100 years.
True
A state by the ocean such as New Jersey has more fluctuation in air and soil temperature than a landlocked state such as Minnesota.
False
The orographic effect causes wet conditions on the leeward side and dry conditions on the windward side.
False
Less than 0.5 percent of Earth’s water is in the form of groundwater.
True
Naturally low rainfall is also known as drought.
False
Chilling injury occurs at a lower temperature than freezing injury.
False
Fallowing involves land in rotation that is not cropped for a season or more.
True
Drainage systems can lower the water table of a soil.
True
Relative maturity (RM) is a system that denotes the average days to physiological maturity for a particular hybrid.
True
The Colorado River and its reservoirs are being depleted due to increased agricultural use and population growth in the Southwest.
True