GREENHOUSE EFFECT: definition and how humans have a role in creating this phenomenon.

definition: The trapping of the sun's warmth in a planet's lower atmosphere, due to the greater transparency of the atmosphere to visible radiation from the sun than to infrared radiation emitted from the planet's surface.

Role People Have: On Earth, human activities are changing the natural greenhouse. over the last century the burning of fossil fuels like coal and oils has increased the concentration of atmospheric carbon dioxide. This happens becuase the coal or oil process combines carbon and oxygen in tbe air to make co2.

Explanation:

Im a professor in planetary geography.

answerblank(1); khirbat al-mafjar,blank(2); ostracon.blank(3); //hisham,blank(4),; //lion; blank(5); gazelle;

northern hill zone (nhz)

western himalayan regions of j& k (except jammu and kathua distt.); h.p. (except una and paonta valley); uttaranchal (except tarai area); sikkim and hills of west bengal and n.e. states

north western plains zone (nwpz)

punjab, haryana, delhi, rajasthan (except kota and udaipur divisions) and western up (except jhansi division), parts of j& k (jammu and kathua distt.) and parts of hp (una dist. and paonta valley) and uttaranchal (tarai region)