Microorganisms and coal and petroleum are important topics in the field of science. Here, I will provide you with a test paper related to these topics for Class 8 students. The test paper will cover various aspects of microorganisms as well as coal and petroleum. Remember to follow the rules mentioned above while answering the questions.

Test Paper: Microorganisms and Coal and Petroleum

Section A: Multiple Choice Questions (MCQs)
1. Which of the following is not a microorganism?
a) Bacteria
b) Fungi
c) Plant
d) Virus

2. Which of the following microorganisms is used in the production of bread?
a) Bacteria
b) Fungi
c) Virus
d) Algae

3. Microorganisms can be seen with the help of which instrument?
a) Microscope
b) Telescope
c) Binoculars
d) Magnifying glass

4. Which type of microorganism causes diseases in humans?
a) Beneficial microorganisms
b) Harmful microorganisms
c) Neutral microorganisms
d) None of the above

5. Which of the following is a fossil fuel?
a) Solar energy
b) Wind energy
c) Coal
d) Hydroelectric energy

Section B: Short Answer Questions
1. Explain the role of microorganisms in the nitrogen cycle.

2. What is the difference between renewable and non-renewable sources of energy? Give examples of each.

3. How is coal formed? Mention the different stages involved in the formation of coal.

4. What are the advantages and disadvantages of using coal as a source of energy?

Section C: Long Answer Questions
1. Describe the process of fossilization of plants and animals to form coal and petroleum.

2. Discuss the environmental impact of using coal and petroleum as sources of energy.

3. Explain the concept of conservation of fossils fuels. Why is it important to conserve these resources?

4. How can microorganisms be beneficial to humans? Provide examples of their uses in different fields.

Remember to write your answers in detail, adhering to the word limit of 300 words or less. Organize your answers using appropriate headings and bullet points to enhance readability. Ensure that your content is visually appealing by using HTML tags to highlight headers and key points.

Option c plant
option b fungi
option a microscope
option b harmful microorganisms
option c coal