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shahzaib hassan
BIOLOGY
-
Environmental Science
Pakistan is divided into ________________ agro-ecological zones.
A. 8.
B. 10.
C. 12.
D. None of these.
shahzaib hassan
BIOLOGY
-
Environmental Science
Which gas is produced in open dumps from the anaerobic decomposition of biodegradable waste?
A. Ethane.
B. Methane.
C. Propene.
D. None of these.
shahzaib hassan
BIOLOGY
-
Environmental Science
What is the order of waste management hierarchy, from most to least favored?
A. Prevention-Recycle-Reuse-Disposal.
B. Prevention-Reuse-Disposal-Recycle.
C. Prevention-Reuse-Recycle-Disposal.
D. None of these.
shahzaib hassan
BIOLOGY
-
Environmental Science
______________________ is the increasing concentration of toxic substances in organisms as trophic levels increase in a food chain or food web.
A. Bio-magnification.
B. Bio-concentration.
C. Bio-accumulation.
D. None of these.
shahzaib hassan
BIOLOGY
-
Environmental Science
An individual may die within 2-10 days after exposure to 500 ppm of the following air pollutant:
A. CO2.
B. NO.
C. SO2.
D. None of these.
shahzaib hassan
BIOLOGY
-
Environmental Science
Mangrove forests in Asia are largely concentrated in:
A. Pakistan.
B. Indonesia.
C. Malaysia.
D. None of these.
shahzaib hassan
BIOLOGY
-
Environmental Science
________________ often serve as an indicator for a threatened ecosystem.
A. Abundant species.
B. Endangered species.
C. Threatened species.
D. None of these.
shahzaib hassan
BIOLOGY
-
Environmental Science
A mutual relationship between two organisms, where both of them are benefiting from watching the other is called:
A. Mutualism.
B. Symbiosis.
C. Parasitism.
D. None of these.
shahzaib hassan
BIOLOGY
-
Environmental Science
The "Ramsar Convention" is an international treaty for the conservation and protection of:
A. Endangered species.
B. Biodiversity.
C. Wetlands.
D. None of these.
shahzaib hassan
BIOLOGY
-
Environmental Science
NEQ was approved on:
A. 1992.
B. 1993.
C. 1995.
D. None of these.
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