Which has a lower frequency than that of visible light?
A. Radio wave.
B. Infrared wave.
C. Microwave.
D. all of the above
Answer: D
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Acid precipitation
A. has been significantly reduced in the United States. B. impairs the ability of aquatic organisms to get calcium for skeleton production. C. affects aquatic ecosystems by lowering the pH of the water. D. All options are correct.
What is one situation in which a metamorphic rock results?
A) A volcano ejects a rock and it cools on the surface of the earth. B) A sedimentary rock experiences the physical elements of the earth's surface. C) An igneous rock breaks down to fragments and then experiences heat and pressure. D) A sedimentary rock experiences intense heat and pressure.
Cowell’s Cove is a beach in Santa Cruz, California noted for good surfing. The Santa Cruz coastal area is in the form of a broad (5 km) short (1.5 km) bay, facing south
? On the west side of the beach is a long (1 km) raised peninsula with a steep rocky cliff edge. The top is about 5 m above the water level. Behind the peninsula, the ground rises in a neighborhood of twisty, one-lane streets to a level 15 m above sea level. The nearest stairway is about 100 m away. To the east, the beach is flat leading to a popular tourist boardwalk. Your car is parked behind the boardwalk about 200 m away. Behind this area a straight two-lane road goes through the downtown area for about 5 km before reaching Highway 101 and hilly country. ? The sea is calm and flat except for a regular line of clean surf breaks surf breaks about 1 m high along the peninsula. You feel a slight jolt. Some rocks tumble from the cliffs, and you can hear car horns honking at areas along the beachfront. After looking around for a few minutes, you notice that the edge of the water is receding quickly, and hear sirens from emergency vehicles in some directions. ? Assume that you are physically fit, and that your car is in good working order. What do you do? Explain your reasoning. What will be an ideal response?
As in the tropics, soils in ____ climates tend to have limited fertility because of rapid removal of soluble nutrients
a. humid subtropical b. subarctic c. marine west coast d. humid continental, hot summer e. humid continental, mild summer