Minute particles and liquid droplets are collectively called ________________.
A. Convection current
B. Ozone
C. UV radiation
D. Aerosols
The most harmful of ultraviolet radiations are ________________.
A. UV-C,
B. UV-B,
C. UV-A,
D. All the above.
Which of the following enhances soil fertility?
A. Crop rotation
B. Improved methods of agriculture
C. Using new seed varieties
D. Irrigation
What is the most important factor for the success of animal population?
A. Natality
B. Adaptability
C. Unlimited food
D. Inter species activity
Carbon dioxide is called green-house gas because it is ________________.
A. Transparent to sunlight but traps heat
B. Transparent to heat but traps sunlight
C. Used in green-house to increase plant growth
D. Transparent to both sunlight and heat
What is UNCED?
A. United Nations Conference on Education,
B. United Nations Conference on Environmental Day
C. United Nations Conference on Environment and Development
D. None of these
_______________ is the element used to produce nuclear energy.
A. Palladium
B. Strontium
C. Uranium
D. Rhodium
Noise is _______________.
A. Huge sound
B. Sound of vehicles
C. Undesirable and unwanted sound
D. Sound of crackers
The word Tsunami is derived from two Japanese words ________________.
A. Tsu(big) and nami(flow)
B. Tsu(harbour) and nami(wave)
C. Tsu(big wave) and nami(wave)
D. None of these
What is the official name of IUCN?
A. World Wide Fund for Nature
B. World Conservation Union
C. United Nations Environment Programme
D. United Nations Educational, Scientific and Cultural Organization
