Q.1
Some reliable indicators of air pollutants are
Q.2
One of the effects of dust is to cause
Q.3
Radiation is a health hazard because it causes
Q.4
If the plants die, all animals will also die due to the shortage of
Q.5
If enriched air is inhaled for a long time it causes
Q.6
D.D.T is a
Q.7
Acid rains are caused by
Q.8
photocpier produces
Q.9
Life without air is
Q.10
How can we controll sound pollution?
1. Due to Corriolis effect, wind in the :
(A) Northern Hemisphere moves to the left with respect to the rotating earth.
(B) Northern Hemisphere moves to the right. and left in the southern hemisphere.
(C) Southern Hemisphere move northward.
2. Precipitation of CaCO3 may occur when :
(A) Sea water is shallow and CO2 is lost.
(B) Sea water is warm and CO2 is being lost.
(C) Sea water is cold and CO2 is being lost.
(D) Sea water is deep and CO2 is being added.
3. Bowen’s law basically tell us :
(A) How a sedimentary rock is formed
(B) How various igneous minerals are formed
(C) How some economic minerals are formed
(D) Both A and B are correct
4. Consider the earth to be a blackbody with average temperature 15°C and surface area 5.1×1014 m2. Find the rate at which energy is radiated by the earth and the wave length at which maximum power is radiated. (Hint: Stefan-Boltzmann Constant = 5.67×10-8 W/m2K4 and use Wien’s Rule)
(A) 4×1017W, 2.02 μm
(B) 1×1017W, 5.1 μm
(C) 1.5×1017W, 7.5 μm
(D) 2×1017W, 10.1 μm
5. Trapping plume occurs when :
(A) Temperature increases with height.
(B) Temperature decreases with height.
(C) Temperature remains steady with height.
(A) Northern Hemisphere moves to the left with respect to the rotating earth.
(B) Northern Hemisphere moves to the right. and left in the southern hemisphere.
(C) Southern Hemisphere move northward.
(D) Both Hemisphere move independent of each other.
2. Precipitation of CaCO3 may occur when :
(A) Sea water is shallow and CO2 is lost.
(B) Sea water is warm and CO2 is being lost.
(C) Sea water is cold and CO2 is being lost.
(D) Sea water is deep and CO2 is being added.
(A) How a sedimentary rock is formed
(B) How various igneous minerals are formed
(C) How some economic minerals are formed
(D) Both A and B are correct
4. Consider the earth to be a blackbody with average temperature 15°C and surface area 5.1×1014 m2. Find the rate at which energy is radiated by the earth and the wave length at which maximum power is radiated. (Hint: Stefan-Boltzmann Constant = 5.67×10-8 W/m2K4 and use Wien’s Rule)
(A) 4×1017W, 2.02 μm
(B) 1×1017W, 5.1 μm
(C) 1.5×1017W, 7.5 μm
(D) 2×1017W, 10.1 μm
(A) Temperature increases with height.
(B) Temperature decreases with height.
(C) Temperature remains steady with height.
(D) Plume lies in a lapse region and sandwiched between inversion layers.
6. Malathion is :
(A)Organo Phosphorus Pesticide
(B)Organo Chloro Pesticide
(C)Organo Carbamate Pesticide
(D)Not a Pesticide
7. Critical point for water in a P - T diagram Suggests : (One statement only is correct)
(A) Water is unstable
(B) Steam is the only stable phase
(C) Both ice and steam are stable phases
(D) Steam, liquid water and ice are stable phases
(B)Organo Chloro Pesticide
(C)Organo Carbamate Pesticide
(D)Not a Pesticide
7. Critical point for water in a P - T diagram Suggests : (One statement only is correct)
(A) Water is unstable
(B) Steam is the only stable phase
(C) Both ice and steam are stable phases
(D) Steam, liquid water and ice are stable phases
8.The pH of a solution containing hydrogen ions concentration of 10−5 mol/L is :
(A)5.0
(B)7.0
(C) 2.0
(D) 9.0
(A)5.0
(B)7.0
(C) 2.0
(D) 9.0
9. The range of pH for river water in India is :
(A) 1 - 14
(B) 4 - 5
(C) 6.5 - 8.0
(D) 7 - 12
10. Removal of key-stone species would cause :
(A) Drastic change in community composition
(B) Drastic change in ecological system
(C) Drastic change in food chain
(D) Drastic change in energy flow
(A) 1 - 14
(B) 4 - 5
(C) 6.5 - 8.0
(D) 7 - 12
10. Removal of key-stone species would cause :
(A) Drastic change in community composition
(B) Drastic change in ecological system
(C) Drastic change in food chain
(D) Drastic change in energy flow
Answers:
1. Northern Hemisphere moves to the right. and left in the southern hemisphere.
2. Sea water is shallow and CO2 is lost.
2. Sea water is shallow and CO2 is lost.
3. Both A and B are correct
4. 2×1017W, 10.1 μm
5. Plume lies in a lapse region and sandwiched between inversion layers.
6. Organo Phosphorus Pesticide
7. Steam, liquid water and ice are stable phases
8. 5.0
9. 6.5 - 8.0
10. Drastic change in community composition
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