Groundwater recharge occurs every time it rains.
Answer the following statement true (T) or false (F)
False
Groundwater recharge only occurs when soil moisture becomes great enough that the water is able to flow downward by gravity and into the groundwater system. These conditions are more common during the winter and spring when evaporation and transpiration rates are low, thereby allowing the buildup of soil moisture.
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Compared to conventional tillage, conservation tillage
a. reduces fuel and tillage costs b. accelerates water loss from the soil c. causes soil compaction d. requires increased use of herbicides e. can qualify the farmer for more government subsidies
Discuss the origins of the Himalayas in terms of plate tectonics. What type of plate boundary is represented? What will be an ideal response?
What is the approximate population of the Russian Domain?
A) 100 million B) 150 million C) 200 million D) 350 million E) 500 million
Flow in deep streams of moderate velocity would most likely be:
a. supercritical and turbulent b. subcritical and turbulent c. supercritical and laminar d. subcritical and laminar