Which is known as snow ball ?
Neptune
Pluto
venus
Sun
Industrial revolution helped the modern human community to prove their standard of living and became :
Social community
Primitive community
Technological community
Old age community
The release of which element into the ecosystem changes the food chains and food webs ?
Waste
Fresh
Toxic
Non-waste
Humans developed their own environment known as :
Cultural environment
Social environment
Economic environment
Primitive environment
Domestication of animals initiated which life among the primitive humans ?
Lonely
Community
Nomadic
Technical life
Agricultural development changed the physical human into :
Social human
Economic human
Primitive human
Technical human
Earth rotates on its axis, inclined at an angle of :
63½0
32½0
43½0
23½0
Less absorption of ultraviolet rays is the depletion of :
Oxygen layer
Carbon dioxide layer
Nitrogen layer
Ozone layer
Due to which process of the earth day and night occurs ?
Revolution
Rotation
Spherical shape of the earth
Due to its place in solar system
Which allows more absorption of incoming solar radiation and outgoing terrestrial re-radiation ?
Carbon dioxide
Oxygen
Carbon
Ozone