ecology & bio environment geography section 2 MCQ Questions & Answers Detailed Explanation
MOST IMPORTANT indian geography mcq - 2 EXERCISES
The following question based on Ecology & Bio geography topic of indian geography mcq
(a) Lead
(b) Chromium
(c) Copper
(d) Mercury
The correct answers to the above question in:
Answer: (d)
Mercury causes biomagnification problem in the ecosystem.
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Read more bio ecology environment Based Indian Geography Questions and Answers
Question : 1
All the ecosystems taken together in a geographical area form a bigger unit called:
a) community
b) territory
c) biome
d) biosphere
Answer »Answer: (c)
Biome is a large naturally occurring community of flora and fauna adapted to the particular conditions in which they occur. For example, Tundra region.
Question : 2
Virtually treeless, sparse vegetation is found in :
a) Chapparal
b) Alpine
c) Tundra
d) Taiga
Answer »Answer: (c)
Polar climates feature long and dark winter periods with extremely cold temperatures. Rainfall is low, and the deeper soil layers stay frozen all year round.
These harsh conditions combined result in treeless, sparse vegetation, which includes shrubs, lichens and mosses, during the summer months. This typical vegetation linked to polar climates is called tundra.
Question : 3
The presence of a lion in the forest is essential in order to
a) keep other carnivorous animals away
b) add beauty in the forests
c) save the pastures from being overgrazed
d) keep the trees safe from felling
Answer »Answer: (c)
Lions provide important ecological and cultural functions. As apex and keystone predator, lions help to regulate prey populations; they also will scavenge if the opportunity arises.
Culturally, the lion (and particularly the male with its highly distinctive mane) is one of the most widely recognized animal symbols in human culture and the lion plays a key role in save the pastures from being overgrazed.
Question : 4
After which one of the following tribes of India, has a large continent of ancient geological history of the world been named?
a) Gonds
b) Bhils
c) Marias
d) Santhals
Answer »Answer: (a)
In paleo-geography, Gondwana, originally Gondwanaland, was the southernmost of two supercontinents that were part of the Pangaea supercontinent. It existed from approximately 510 to 180 million years ago.
It included most of the landmasses in today's Southern Hemisphere, including Antarctica, South America, Africa, Madagascar and the Australian continent, as well as the Arabian Peninsula and the Indian subcontinent, which have now moved entirely into the Northern Hemisphere.
Question : 5
The distribution of characteristic vegetation of a region is determined mainly by
a) sunlight, water and wind
b) water, greenhouse effect and altitude
c) wind, water and latitude
d) soil, water and temperature
Answer »Answer: (d)
Soil, water and climate of a region are the three primary factors significantly influencing the vegetation of a region. Such factors as depth, texture, and humus content of the soil determine the type of vegetation that can be supported in a region.
Again, any vegetation needs moisture to survive and this explains the range which varies from evergreen forests to shrubs.
Temperature also plays a crucial role in plant growth and development with extremes on either end affecting plant growth severely.
Question : 6
Name the condition which influences the development of plants into distinctive forms.
a) Social conditions
b) Soil conditions
c) Environmental conditions
d) Climatic conditions
Answer »Answer: (d)
The development of plants into diverse and distinctive forms is mainly due to climatic factors such as temperature, precipitation, etc, which are in turn responsible for the variations in soil types. As seen in Koeppen’s classification, we can identify different climates by the types of plants that grow there.
GET Ecology & Bio geography PRACTICE TEST EXERCISES
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