Which of the following statements is true regarding high or low pressure for a parcel of air at the surface?
A. lower temperature, higher density, cold air rises, higher pressure at surface
B. lower temperature, higher density, cold air sinks, higher pressure at surface
C. higher temperature, higher density, warmer air rises, lower pressure at surface
D. higher temperature, lower density, warmer air rises, higher pressure at surface
Answer: B
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A ________ is a structure designed to protect boats from large breaking waves by creating a quiet-water zone near shore.
a. breakwater b. tombolo c. groin d. tidal flat e.barrier island
What is the theory of plate tectonics?
A) Earth was created 6,000 years ago. B) Earth is made up of a large number of geological plates that move slowly across its surface. C) Human activities are changing Earth's surface. D) The number of tectonic plates equals the number of continents on Earth. E) Earth's continents are moving closer together.
Most Pleistocene mineral deposits are directly or indirectly related to glaciation. Indicate whether the statement is true or false
Predict how the results of this experiment might vary if repeated in a less mountainous region with lower annual rainfall. (10)
a. Lower soil loss for both conventional and reduced tillage treatments b. A greater percentage difference in soil loss between conventional and reduced tillage c. Higher soil loss for both conventional and reduced tillage treatments d. Lower soil loss for conventional tillage but high soil loss for reduced tillage