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HSSC TGT Music Date 30/4/2023 Evening Shift
📆 December 13, 2024
Total Questions: 50
1.
Which of the following serves as the source of carbon in plants?
(a) CO₂ of carbonate rocks
(b) Atmospheric CO₂
(c) Fossil fuel
(d) All of the above
(e) Unattempted
Correct Answer:
(b) Atmospheric CO₂
2.
The pyramid of biomass will be inverted in the ecosystem of:
(a) Forests
(b) Ponds
(c) Grasslands
(d) Dry lands
(e) Unattempted
Correct Answer:
(b) Ponds
3.
We and our surroundings together are called:
(a) Environment
(b) Atmosphere
(c) Lithosphere
(d) Hydrosphere
(e) Unattempted
Correct Answer:
(a) Environment
4.
In the atmosphere, what carry/carries air pollutants to other places and other countries?
(a) Waves
(b) Prevailing winds
(c) Water
(d) Sunlight
(e) Unattempted
Correct Answer:
(b) Prevailing winds
5.
In a food chain, the largest population is that of:
(a) Producers
(b) Primary consumers
(c) Decomposers
(d) Secondary consumers
(e) Unattempted
Correct Answer:
(a) Producers
6.
Denitrification in sewage treatment systems requires:
(a) The bubbling of oxygen into waste sewage
(b) The addition of water to waste
(c) An anaerobic environment
(d) An aerobic environment
(e) Unattempted
Correct Answer:
(c) An anaerobic environment
7.
The hydronium ions of acid rain mobilize toxins such as:
(a) Iron
(b) Magnesium
(c) Aluminium
(d) None of these
(e) Unattempted
Correct Answer:
(c) Aluminium
8.
The term 'Ecosystem' was coined by:
(a) A. G. Tansley
(b) E. Haeckel
(c) Reiter
(d) R. Lindeman
(e) Unattempted
Correct Answer:
(a) A. G. Tansley
9.
Why is recycled paper banned for use in food containers?
(a) Because it creates a lot of space
(b) Because it creates contamination
(c) Because paper can be used only one time
(d) Because paper is very thick and can't cover the food containers
(e) Unattempted
Correct Answer:
(b) Because it creates contamination
10.
Which day is celebrated as the 'Earth Day'?
(a) 22nd April
(b) 5th June
(c) 24th October
(d) 21st July
(e) Unattempted
Correct Answer:
(a) 22nd April
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