Answer:
C. the addition of new lithospheric mantle as a result of cooling
Explanation:
- The oceanic lithosphere is a part of the asthenosphere and the upper mantle and its thickness depend on the distance away for the mid-oceanic ridges.
- This is evident from the studies of the seafloor spreading and the cooling of the plates and rocks masses. As the hot magma upwells and then cools at a certain degree and the cooled plates move away from the center.
Answer:
B. Temperate climates are generally defined as environments with moderate rainfall spread across the year or portion of the year with sporadic drought, mild to warm summers and cool to cold winters.
C. They are hot and wet all year round – this creates a humid climate. The annual rainfall is high as it rains almost every day. The temperatures are constant all year round – the temperature range is usually only a few degrees. There are no seasons.
D. Tundra ecosystems are treeless regions found in the Arctic and on the tops of mountains, where the climate is cold and windy, and rainfall is scant. Tundra lands are covered with snow for much of the year, but summer brings bursts of wildflowers.
E. A humid continental climate is a climatic region defined by Russo-German climatologist Wladimir Köppen in 1900, typified by four distinct seasons and large seasonal temperature differences, with warm to hot (and often humid) summers and cold (sometimes severely cold in the northern areas) winters.
Explanation:
A deep inlet of the sea almost surrounded by land