The sun's radiance usually has a ____ variation
a. 1%
b. 10%
c. 20%
d. 40%
ANS: A
There was less than 1% variation in radiance over a period of 11 years, but the sun can have an impact
on temperatures on Earth. The Maunder Minimum period occurred when sunspots were rare. The
temperatures for the winters during this time were very bitter cold in North America and Europe.
Information can be found in the section Human Activity is Causing Global Oceanic Change
You might also like to view...
Islamic cities can be found throughout the Islamic world, not just on the Arabian Peninsula
Indicate whether this statement is true or false.
An aneroid barometer measures air pressure using mercury or other liquids
Indicate whether the statement is true or false
Which of the following energy sources makes up the largest percentage of the electricity produced in the U.S.?
A. oil B. natural gas C. renewables D. nuclear E. coal
Rocks above and below an unconformity are related
a. True b. False