Environmental Science Practice Quiz Chp 6

Alpine tundra is a type of ecosystem found at high elevations in mountains, above the tree line. This ecosystem is characterized by harsh conditions such as low temperatures, strong winds, and thin soils. The vegetation in alpine tundra is typically low-growing and consists of grasses, shrubs, and small flowering plants that are adapted to survive in these extreme conditions. The alpine tundra ecosystem plays an important role in maintaining biodiversity and providing habitat for various species that are specially adapted to live in this challenging environment.

Savanna occurs in areas of low rainfall or seasonal rainfall with prolonged dry periods. This type of biome is characterized by a grassy landscape with scattered trees and shrubs. The lack of sufficient rainfall limits the growth of dense forests, allowing grasses to dominate the vegetation. The dry periods also result in wildfires being a common occurrence in savannas. The plants and animals in savannas have adapted to these conditions, with many species having mechanisms to survive the long periods of drought.

The correct answer is "Temperate rain forest" because it accurately describes the type of forest that occurs on the northwest coast of North America. Coniferous forests are characterized by the presence of cone-bearing trees, and the term "temperate rain forest" refers to a specific type of forest that is found in regions with cool, moist climates. The northwest coast of North America, including areas such as Washington and British Columbia, is known for having temperate rain forests, which are dominated by coniferous trees and receive high levels of rainfall.

In areas where the climate is quite cold, the occurrence of Alpine Tundra is characterized by vegetation composed of grasses, sedges, and small tufted plants. This type of vegetation is well adapted to survive in the harsh conditions of the alpine tundra, which includes low temperatures, strong winds, and a short growing season. The vegetation is usually low-growing and consists of plants that can withstand the extreme cold and have adaptations such as deep root systems and the ability to store nutrients. The Alpine Tundra is typically found at high altitudes, above the tree line, in mountainous regions around the world.

The given statement describes the climate characteristics of temperate grasslands, which are characterized by hot summers, cold winters, and unpredictable rainfall. Therefore, the correct answer is temperate grasslands.

Seasonality is characteristic of the temperate deciduous forest, which occurs in temperate areas where precipitation ranges from about 75 to 150 cm annually. This type of forest experiences distinct seasons, with a warm summer and a cold winter. The trees in the temperate deciduous forest also shed their leaves in the fall and regrow them in the spring, adapting to the changing seasons. The precipitation range mentioned is typical for this type of forest, as it receives a moderate amount of rainfall throughout the year.

At higher elevations, the climate becomes colder and more severe, which is not conducive for the growth of broadleaf trees. Instead, coniferous trees, such as spruces, firs, and pines, are better adapted to these harsh conditions. Therefore, one might find a coniferous forest at higher elevations where the climate is colder and more severe, and this type of forest is specifically referred to as a subalpine forest.