1. the amount of incoming solar radiation absorbed at the earth’s surface is approximately: a. 90% b. 70% c. 50% d. 30% e. 10%

2. true/false: during the nighttime, the atmosphere will cool via the process of radiation faster than the surface of the earth: a. true b. false

Radiation absorbed at the Earth’s surface is b. 70%. 2.  a. True

Explanation:

The point of incoming solar radiation received a the surface is 100 % but the amount of energy that is reflected clouds and gases in atmosphere make up to 23% hence this along with the 48% of incoming solar energy at the earth surface features creates a total net of 71% being taken up by the earth's land surfaces. As this radiation which is given by the sun comes in the form of an incoming shirt wave from the earth radiate as a black body with long-range radiation that transfers the earth heat to outer space hence we experience cool mornings. Due to radiative cooling which is the process of heat loss through the thermal exchange.

When a lake, river or other aquatic  system  becomes  eutrophic, it can have serious negative effects on other organisms like fish, birds and even people.if an algal bloom is so bad that it causes wide-spread death  in  the  water, the organisms that die will all sink to the bottom and start to decompose.