Man and His Environment Test 02

Total Questions: 31

1 - The major process that brings carbon from atmosphere into living world is:

A ) Photosynthesis ✅
B ) Respiration
C ) Both a & b
D ) Nitrification

2 - Nitrogen is an important component of:

A ) Proteins
B ) Nucleic Acid
C ) Lipids
D ) Both a & b

3 - Process of breakdown of the proteins of dead organisms to ammonia is called;

A ) Ammonification ✅
B ) Nitrification
C ) Denitrification
D ) Assimilation

4 - The utilization of nitrates by organisms is called:

A ) Nitrification
B ) Ammonification
C ) Assimilation ✅
D ) Denitrification

5 - It is not a temporary parasite;

A ) Mosquito
B ) Virus
C ) Leech
D ) Bed bug

6 - It is not an endoparasite;

A ) Ascaris ✅
B ) Plasmodium
C ) Entamoeba
D ) Mosquito

7 - An epiphyte is an example of:

A ) Parasitism
B ) Mutualism ✅
C ) Commensalism
D ) Symbiosis

8 - The example of epiphyte is;

A ) Mosquito
B ) Orchid plant ✅
C ) Rhizobium
D ) Plasmodium

9 - Which of the following is not an example of greenhouse gas?

A ) CO2
B ) Methane
C ) Oxygen ✅
D ) Nitrous Oxide

11 - Abiotic component of ecosystem is;

A ) Producers
B ) Herbivores
C ) Carnivores
D ) Soil ✅

12 - A symbiotic interaction in which both partners get benefits;

A ) Mutualism ✅
B ) Competition
C ) Parasitism
D ) Predation

13 - The consumers that eat animal flesh as well as plants and plant products are called:

A ) Herbivores
B ) Carnivores
C ) Omnivores ✅
D ) Insectivors

15 - The perfect cycle is;

A ) Carbon cycle ✅
B ) Nitrogen cycle
C ) Water cycle
D ) Sulphur cycle

16 - Nitrogenous wastes includes;

A ) Ammonia
B ) Urea
C ) Uric acid
D ) All of the above ✅

17 - Plants show competition for;

A ) Space
B ) Light
C ) Water and Minerals
D ) All of the above

18 - Flow of energy is always;

A ) Unidirectional ✅
B ) Two directional
C ) Multidirectional
D ) Not directionl

19 - IPCC stands for;

A ) International project of Calimat Change
B ) Intergovernmental project of Calimat Change
C ) Intergovernmental Panel on Climate Change ✅
D ) International Panel on Climate Change change

Explanation:
  1. Established 1988
  2. Headquater Geneva,Switzerland(The capital of Switzerland is Bern (also spelled Berne)
  3. Member 195 Countries
  4. The IPCC Secretariat
    The Secretariat is located in Geneva, Switzerland, in the building of the World Meteorological Organization. It has 15 members of staff.

24 - Pakistan growth rate in 1991 was;

A ) 2%
B ) 2.50%
C ) 2.69% ✅
D ) 2.89%

26 - Recycling of one tonne paper can save:

A ) 10 trees
B ) 15 trees
C ) 18 trees
D ) 17 trees ✅

27 - Number of people at risk of dengue fever are;

A ) 1.5 billion
B ) 2.5 billion ✅
C ) 3.5 billion
D ) 2.5 billion

28 - Scientists fear that sea level is rising per year upto;

A ) 0.8 cm
B ) 10 cm
C ) 0.9 cm ✅
D ) 9 cm

29 - It is estimated that Maldives might become uninhabitable within;

A ) 50 years
B ) 80years
C ) 100 years ✅
D ) 130 years

31 - The living organisms which cannot prepare their own food but obtain ready made food from others are;

A ) Primary and secondary consumers
B ) Secondary and tertiary consumers
C ) Only primary consumers
D ) All types of Consumers ✅