sci a

• These are limited and can get exhausted overtime
• These are limited and can get exhausted overtime, what is this?

  Exhaustible
• These are in plenty and cannot be exhausted by men, what is this?

  Inexhaustible
• What is the meaning of afforestation?

  growing of plants in unprotected barren lands
• What is Van Mahotsava?

  a tree plantation movement
• What is reforestation?


  a developing forest in an area that has been damaged
• separation of commercial forestry means?


  plants that are planted separately
• deforestation means?


  removal of a forest
• soil erosion is?


  removal of plants making the soil infertile
• what is desertification?


  removal of forests which makes the area dry
• how do floods occur?

  many temporary rivulets are formed, the rivulets produce floods i lowlands
• destruction of wild life definition?

  taking away ones habitat
• climate changes mean?


  the change of weather during a year
• coal is made out of?

  fossilized rocks and large accumulation of plants compressed
• petroleum is made out of?

  a fossil fuel from plant and animal remains
• What is another term for "chipko movement"?


  "hug the tree"
• Tropos means?


  change
• what is the highest surface of the earth?

  troposhere
• strat means?


  layers
• what is the layer in the atmosphere that has it's own layers?

  stratosphere
• meso means?


  middle'
• what is the coldest layer?

  mesosphere
• thermo means?


  heat
• what is the layer that forms auroras seen in alaska?

  thermosphere
• exo means?


  outside
• what is the most outside layer?

  exosphere
• what time does the land breeze take place?

  nighttime
• what time does the sea breeze take place?

  morning time
• when do summer monsoons usually take place?

  april and september
• when do winter monsoons usually take place?

  october and march
• what monsoon blow dry air?

  winter monsoon
• what monsoon brings humid climate and rainfalls?

  summer monsoon
• what is a solar eclipse?

  when the moon blocks the sunlight
• what is a lunar eclipse?

  when the earth passes between the sun and the moon
• what is an eclipse?

  when two celestial bodies create one