1.The solid parts of earth crust is called-
A.Atmosphere
B.Hydrosphere
C.Lithosphere
D.Soil erosion
2.Over exploitation is a serious threat to-
A.Wild life
B.National parks
C.Wild life sanctuaries
D.Biosphere reserves
3.World Environment day is celebrated on-
A.5 June
B.10 March
C.15 April
D.20 August
4.Ozone layer protects human from-
A.X rays
B.UV rays
C.Gamma rays
D.Alpha Rays
5.In birds DDT prevent the proper formation of-
A.Sperms
B.Eggs
C.Blood
D.Feather
6.Rainfall pattern depend on-
A.The underground water table
B.The number of water bodies in an area
C.The density pattern of human population in the area
D.The prevailing season in an area
7.One of the following factors does not lead to soil formation in nature-
A.The sun
B.Water
C.Wind
D.Polythene bags
8.The two forms of oxygen found in the atmosphere are-
A.Water and ozone
B.Water and oxygen
C.Ozone and oxygen
D.Water and carbon dioxide
9.One of the following processes is not a step involved in the water cycle operating in nature is-
A.Evaporation
B.Transpiration
C.Precipitation
D.Photosynthesis
10.Ozone hole means-
A.A large sized hole in the ozone layer
B.Thinning of the ozone layer
C.Small holes scattered in the ozone layer
D.Thickening of ozone in the ozone layer
