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Environmental Science MCQ Questions and answers | EVS MCQ

Learn and practice General Knowledge questions and answers on Environmental Science MCQ with very easy and understandable explanations. EVS MCQ questions are very helpful different type of competitive ex Page-1 section-3

Each section contains 100 MCQs on Environmental Science .
1
An important reason for the large daily temperature range over deserts is:
Discuss
Answer & Solution
Answer: Option A
Solution:
There is little water vapor in the air to absorb and re-radiate infrared radiation.
2
The formula of growth rate for population in given time is
Discuss
Answer & Solution
Answer: Option D
Solution:
The formula of growth rate for population in given time is dN/dt=rN.
3
Air is composed of gases, water vapours and
Discuss
Answer & Solution
Answer: Option C
Solution:
Air is composed of gases, water vapours and many of the dust particles.
4
Which of the following is a biodiversity hot spots in India?
Discuss
Answer & Solution
Answer: Option A
Solution:
It hosts 4 biodiversity hotspots:the Himalayas, the Western Ghats, the Indo-Burma region and the Sundaland (Includes Nicobar group of Islands). These hotspots have numerous endemic species.
5
Temperate forests occur in India in
Discuss
Answer & Solution
Answer: Option B
Solution:
In India, these forests are distributed between 1700-3000 meter altitude in the Himalayas.
6
The unit of total water content of the soil is known as
Discuss
Answer & Solution
Answer: Option A
Solution:
Total water content available in a soil is called as holard. Soil water available to plants is called as chresard.
7
The unfavourable alteration of environment due to human activities is termed as
Discuss
Answer & Solution
Answer: Option D
Solution:
Pollution is defined as the process of making land, water, air or other parts of the environment unfavorable for life by the introduction of a contaminant into a natural environment through human activities.
8
The complex network of interconnected food chains is called ___________
Discuss
Answer & Solution
Answer: Option B
Solution:
A network of food chains existing together in an ecosystem is known as food web.
9
Autecology deals with
Discuss
Answer & Solution
Answer: Option A
Solution:
Autecology is primarily experimental and deals with easily measured variables such as light, humidity, and available nutrients in an effort to understand the needs, life history, and behaviour of the organism or species.
10
Synecology deals with
Discuss
Answer & Solution
Answer: Option C
Solution:
Synecology is a subfield of ecology concerned with the relations between groups of organisms or coexisting biological communities.