GEOLOGY

EARTH SCIENCE

GROUNDWATER

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
A model of Earth’s water budget shows that the precipitation on oceans is 420, 000 km3 and the precipitation on land is 130, 000 km3. If the evaporation from land is 90, 000 km3, how much is the evaporation from oceans?
A
90, 000 km3
B
130, 000 km3
C
460, 000 km3
D
550, 000 km3
Explanation: 

Detailed explanation-1: -The ocean holds 97% of the total water on the planet; 78% of global precipitation occurs over the ocean, and it is the source of 86% of global evaporation.

Detailed explanation-2: -The hydrologic cycle is a conceptual model that describes the fluxes of water between the oceans, surface water bodies (lakes, rivers, and streams), groundwater in subsurface aquifers, the atmosphere, and the biosphere.

Detailed explanation-3: -All water on Earth resides in one of the three compartments of the hydrologic cycle: the atmosphere, the land surface, and the subsurface. A water budget is an account-ing of water stored within and water exchanged among some subset of the compartments, such as a watershed, a lake, or an aquifer.

Detailed explanation-4: -As condensation occurs and liquid water forms from the vapor, the water molecules become more organized, and heat is released into the atmosphere as a result.

There is 1 question to complete.