Exam 18: The Biosphere and Human Effects

Which was responsible for destruction of the ozone layer?

The conversion of grasslands or woodlands to desert-like conditions is called ____.

Which biome is pictured here?

Acid rain is the result of ____.

Very high concentrations of ____ accumulates in large predatory fishes such as swordfish, bluefin tuna, and albacore tuna, which may cause developmental abnormalities when consumed by pregnant women.

A clear lake is likely to be ____.

Which primary succession event led to the formation of the tundra?

Scientists are documenting the level of radiation in ____ forests along the western coasts of North America because they tend to take up and concentrate radioactive material, making it easier to detect.

The Klamath-Siskiyou forest in southwestern Oregon and northwestern California is home to many rare conifers, two endangered birds, and the endangered Coho salmon. Because of this, it is considered to be a conservation _____.

Crater Lake in Oregon formed as a result of a(n)____ about 7,700 years ago.

A(n)____ species resides where it evolved, and is found nowhere else on Earth.

In this freshwater aquatic ecosystem, species composition varies along its length based on rock types, depth, oxygen concentrations, and temperature.

The prime factor that drives coral bleaching is ____.

Where are grassland biomes typically found?

Which biome has a layered structure that will contain many vines and epiphytes?

The Great Pacific Garbage Patch is a region of the north central Pacific where a high concentration of confetti-like plastic particles swirl slowly around an area as large as the state of ____.