Fill in the blanks, according tothe Greenhouse effect. P 1. Clouds and gases reflect about ...a....

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Fill in the blanks, according tothe Greenhouse effect.
P
1. Clouds and gases reflect about ...a... of the W. incoming solar radiation, and absorb some of it but almost ....b.... of incoming solar radiation falls on Earth's surface heating it, while a small proportion is reflected back.
2. Earth's surface re-emits heat in the form of ...c... but part of this does not escape into space as atmospheric gases absorb a major fraction of it.
(1) a-one half, b-one fourth, c-UV radiation
(2) a-one fourth, b-one half, c-UV radiation
(3) a-one half, b-one fourth, c-infrared radiation
(4) a-one fourth, b-one half, c-infrared radiation
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