Page 51 - 4559

RUNNING WATER
Task 1. Read and memorize the following words:
hydrologic cycle – living tissue – жива тканина
гідрологічний цикл, кругообіг
води в природі
subsurface water – підземні transpiration - випаровування
води
evapotranspiration - river channel – річковий
евапотранспірація канал
drought - посуха high latitude – висока широта

submerge - затоплювати

Task 2. Read the following text.

Earth as a System: The Hydrologic Cycle
Earth is the only planet in the solar system with a global
ocean and a hydrologic cycle. Water is found almost everywhere
on Earth—in the oceans, glaciers, rivers, lakes, air, soil, and in
living tissue. All of these “reservoirs” constitute Earth’s
3
hydrosphere, which contains about 1.36 billion km (cubic km) of
water. The vast majority of it, about 97%, is stored in the global
ocean. Ice sheets and glaciers account for slightly more than 2%,
leaving less than 1 % to be divided among lakes, streams,
subsurface water, and the atmosphere.
Water is constantly moving among Earth’s different
spheres—the hydrosphere, the atmosphere, the geosphere, and the
biosphere. This unending circulation of water, called the
hydrologic cycle, describes what happens as water evaporates from
the ocean, plants, and soil, moves through the atmosphere, and
eventually falls as precipitation. Precipitation that falls onto the
ocean has completed its cycle and is ready to begin another.
When precipitation falls on land, it either soaks into the
ground (the process is called infiltration), flows over the surface

50