Environmental Sciences
Mahatma Gandhi Central University, Bihar
B.Tech Computer Science & Engineering
Semester 4 Examination, 2025
Environmental Sciences (CSET3129)
Assessment Questions
Environmental Sciences (CSET3129) - 2025
Section A (MCQ)
Attempt all 10 out of 10 questions. Select the most appropriate answer for each question. Each question carries 1 mark.
- 1
Which tiger reserve is present in Bihar?
- 2
Green House effect refers to
- 3
Global warming will cause the following problem
- 4
Deforestation is caused by
- 5
Environment includes
- 6
What does ozone layer absorb
- 7
Which is called as autotrophs
- 8
Example of Primary consumers
- 9
The following is the correct food chain of grassland ecosystem
- 10
The major functional attributes of the ecosystems include
Section B (Short Answer)
Attempt ANY FOUR out of SIX Questions. Write briefly in 250 words. Each question carries 5 marks.
- 1
Write short notes on Food Web. How it is different from food chain.
- 2
What are ecological pyramids? Briefly explain its types.
- 3
What are the sources of water pollution? Give a brief account.
- 4
Write a short note on Global warming.
- 5
What is Green House effect? How it affects the human health?
- 6
Briefly explain Ozone layer depletion.
Section C (Long Answer)
Attempt ALL questions having internal choices. Answer must be comprehensive with explanations and examples in 500 words. Each question carries 10 marks.
- 1
Answer any ONE of the following
(a)What are various types of biotic interactions among organisms of a community? Explain.
OR
(b)What is succession? Explain its types and process.
- 2
Answer any ONE of the following
(a)Give a detailed account of ecosystem, structure and function.
OR
(b)Explain various types of food chain with suitable examples.
- 3
Answer any ONE of the following
(a)Describe air and soil pollution and its impacts on environment.
OR
(b)Explain nitrogen cycle and carbon cycle with suitable diagrams.