What is an earthquake? Under what circumstances do most large earthquakes occur?
What will be an ideal response?
An earthquake is the ground shaking because of the sudden release of stored energy through the sudden and rapid slippage of crustal blocks along a fault. Most large earthquakes occur in association with plate boundaries, specifically locked subduction zones.
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Evolution by _____________ occurs when the genetic makeup of a population changes over time as individuals that survive changes in environmental conditions pass that genetic advantage onto their children. Hint : two words
Fill in the blank(s) with the appropriate word(s).
An aerovane is commonly used to measure:
A) wind direction only. B) wind speed only. C) both wind direction and wind speed. D) pressure gradient force only.
What is the innermost layer of the atmosphere, extending 17 kilometers above sea level at the tropics and about 7 kilometers above the earth's North and South Poles?
A. troposphere B. stratosphere C. hydrosphere D. geosphere E. biosphere
A(n) ____________________ air mass is the coldest
Fill in the blank(s) with correct word