Answer:
ozone is a pale blue gas which is made up of three oxygen atoms.
hole in ozone layer affect humans
bcoz harmful uv rays are entered through the hole which is dangerous to human's skin and health.
cfc are found in industries.
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 is called green house effect
the main gases responsible for the greenhouse effect are greenhouse gases. they are important bescause Greenhouse gases keep our planet livable by holding onto some of Earth's heat energy so that it doesn't all escape into space.
effects of global warming:
1) climate change
2) melting of glacier
3) acid rain
climate change refers to the variation of the earths global or regional climate over a long period of time because of changes in environment
desertification is the process by which fertile land becomes desert, typically as a result of drought, deforestation, or inappropriate agriculture.
