Describe the three mechanisms of heat transfer. Which mechanism is least important as a means of heat transfer in the atmosphere?
What will be an ideal response?
The three mechanisms of heat transfer are conduction (the transfer of heat through matter by molecular activity; this is the least significant), convection (the transfer of heat by mass movement or circulation within a substance), and radiation (the heat-transfer mechanism by which solar energy reaches our planet as radiant energy readily travels through the vacuum of space).
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Using the data in this table, determine the age of the dike.
A) 500
B) 1,000
C) 40,000,000
D) 500,000,000
E) 1,000,000,000
What was the original motivation for China's one-child policy?
A. avoid mass starvation B. increase economic clout C. control of the world D. be a model for the rest of the world
The relief from Earth's highest point to its lowest point is approximately 50 km (31 mi)
Indicate whether the statement is true or false
About 9% of the earth's land area is in the category of ice cap climate
Indicate whether the statement is true or false