All but one of the following statements describe why scientists doubt the solar sunspot cycle affects global climate. Identify which statement is irrelevant to the explanation
A) Solar winds can affect satellite communications.
B) The variations in solar particle winds do not change the temperature of the Earth's ocean or ground.
C) The solar cycle varies every 11 years; average Earth temperatures do not show an 11 year variation.
D) Variations in solar activity affect the Sun's luminosity by a very tiny amount.
A
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The surface area of Antarctica is 13.2 million square kilometers. If 1 acre is equivalent to 4047 
what is the surface area of Antarctica in acres?
a. 
b. 
c. 
d. 
e. 
f. 
Transformers: In an ideal transformer, how many turns are necessary in a 110-V primary if the 24-V secondary has 100 turns?
A. 458 B. 240 C. 110 D. 22
When water boils, its temperature increases
a. True b. False Indicate whether the statement is true or false
A 3.50-kg block is pulled along a moving conveyor belt at a constant speed of 0.500 m/s relative to a stationary observer while the belt moves at a constant speed of 0.200 m/s in the opposite direction. If the coefficient of kinetic friction is 0.400, the magnitude of the mechanical energy dissipated, in J, caused by the force of friction on the block in 8.00 s is
a. 5.6. b. 22.0. c. 32.9. d. 54.8. e. 76.8.