Summarize the challenges we face in protecting marine biodiversity. For each item, present a brief explanation. Further, briefly explain which challenge you personally think is the worse threat and why
What will be an ideal response?
1. The human ecological footprint and fishprint are expanding so rapidly it is difficult to even monitor their impacts.
2. Much of the damage to oceans and large bodies of water is not visible to most people.
3. Many people incorrectly view the seas as an inexhaustible resource that can absorb an almost infinite amount of waste and pollution and still produce the seafood we want.
4. Most of the world's ocean area lies outside the legal jurisdiction of any country.
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"The water table always loses water when it is intersected by a stream bed that has eroded to that level." Evaluate this statement
A) It is true. Water from the water table seeps into the stream and moves downstream. B) It is partially true. When it rains, the water table gains water through the streambed. C) It is false. Stream beds cannot erode enough to reach the water table unless there is an existing spring. D) It is false. Streams receive their water by runoff of precipitation and, in fact, supply water to the water table.
Which of the following shows the general sequency of an orogeny?
A) thickening of crust through accretion or magma intrusion—uplift—weathering and/or erosion B) uplift—thickening of crust through accretion or magma intrusion—weathering and/or erosion C) weathering and/or erosion—uplift—thickening of crust through accretion or magma intrusion D) thickening of crust through accretion or magma intrusion—weathering and/or erosion—uplift
If a geographer uses aerial photos and satellite images to study land use, traffic, forestry, and pollution; this geographer most likely has a major in what sub-field
a. remote sensing. b. demography. c. anthropogenic. d. ethnography. e. geomorphology.
In the Köppen classification, the letter ______ is used to designate year-round precipitation
a. f b. w c. s d. y