Mass wasting is more likely to occur in:
a. deeply weathered material.
b. thin layers of loose material.
c. bedrock.
d. well sorted material.
e. material of large grain size
A
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Which of the following statements is true about a climax community
A. It is the community that will develop after an intense disturbance B. It is the community that will develop after a long stable period of time C. It is the very first community to colonize bare rock or soil D. It is the highest number of animals at the top of the food web
Salinization occurs when the concentration of salts increases in a soil, making it unfit for agriculture
Indicate whether the statement is true or false
Which of the following is the definition of the calorie?
A) the amount of heat required to heat 1.0 oz of water by 1.0°F B) the amount of heat required to heat 1.0 oz of water by 1.0°C C) the amount of heat required to heat 1.0 g of water by 1.0°F D) the amount of heat required to heat 1.0 g of water by 1.0°C
The water vapor-greenhouse feedback represents a ____ feedback mechanism
a. ?neutral b. ?positive c. ?directional d. ?negative e. ?balanced