7. Latent heat of vaporization for water: a. is more than 500 times greater than

Question

7. Latent heat of vaporization for water: a. is more than 500 times greater than specific heat of water b. unimportant for reservoirs c. a characteristic of lake stability d. a factor determining the minimum temperature for a lake e. requires hypolimnetic recharge from inflows

8. Factors affecting the hydrologic cycle include: a. solar energy, transpiration, groundwater, extinction coefficient b. vegetation type, groundwater recharge rate, epilimnion, lake surface temperature c. solar energy, wind, stratification, lake stability d. evapotranspiration, solar radiation, air temperature, lake surface temperature

9. True or False. Reservoirs can be considered ecosystems in which boundaries are shorelines or watersheds and either way they will conform to thermodynamic laws. a. True b. False

Explanation / Answer

7. Latent heat of vapourization is a characteristic of lake stability because it indicates the energy requires to change phase from one gram of liquid to vapour at constant temperature.

8.Factors affecting the hydrological cycle include evapotranspiration, solar radiation, air temperature, lake surface temperature. Hydrological cycle is the circulation of water in the hydrosphere through precicpiation, transpiration, evaporation, evapotranspiration and surface runoff. Thus, solar radiation, air temperature and lake surface temperature is important for evaporation and transpiration.

9. Reservoirs can be considered ecosystems in which boundaries are shorelines or watersheds and either way they will conform to thermodynamic laws - False.

Reservoir is a large natural or artifical lake that is used as source of water supply. So it is not directly related to ecosystems.

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