Home
Class 12
BIOLOGY
Cattle dung is commonly used for biogas ...

Cattle dung is commonly used for biogas production because (a) Cattle dung is a rich source of methanogens (b) It has large amount of cellulose as cattle are herbivores (c) It is easily available in large quantities in rural areas

A

(a) & (b)

B

(a) & (c)

C

(b) & (c)

D

(a) (b) & (c)

Text Solution

AI Generated Solution

The correct Answer is:
To determine why cattle dung is commonly used for biogas production, we need to evaluate the three statements provided in the question: 1. **Statement A: Cattle dung is a rich source of methanogens.** - Methanogens are anaerobic bacteria that thrive in environments with little to no oxygen. They play a crucial role in the production of biogas by breaking down organic matter and producing methane, carbon dioxide, and hydrogen as byproducts. Since cattle dung contains these methanogenic bacteria, this statement is correct. 2. **Statement B: It has a large amount of cellulose as cattle are herbivores.** - While it is true that herbivores, including cattle, consume cellulose-rich plant material, the cellulose itself is largely broken down by the methanogenic bacteria in the digestive system of the cattle. By the time the dung is produced, most of the cellulose has already been digested. Therefore, this statement is incorrect as cattle dung does not retain a large amount of cellulose. 3. **Statement C: It is easily available in large quantities in rural areas.** - Cattle are commonly raised in rural areas, and their dung is readily available in significant amounts. This makes it a practical choice for biogas production in these regions. Thus, this statement is correct. **Conclusion:** From the evaluation of the statements: - Statement A is correct. - Statement B is incorrect. - Statement C is correct. Therefore, the correct answer to the question is that cattle dung is commonly used for biogas production because of statements A and C. ### Final Answer: Cattle dung is commonly used for biogas production because: - (a) Cattle dung is a rich source of methanogens (Correct) - (b) It has a large amount of cellulose as cattle are herbivores (Incorrect) - (c) It is easily available in large quantities in rural areas (Correct)
Promotional Banner

Topper's Solved these Questions

  • MOCK TEST 36

    AAKASH INSTITUTE|Exercise EXAMPLE|35 Videos

  • MOCK TEST 38 ZOOLOGY

    AAKASH INSTITUTE|Exercise EXAMPLE|20 Videos

Similar Questions

Explore conceptually related problems

(A) : Biogas plants are usually build in rural areas. Cattle dung is available in large quantities.

Assertion: Biogas plants are more often built in rural areas Reason: Cattle dung is available in large quantities in rural areas wherecattle ae used for a variety of purposes.

A biogas plant is where biogas is produced by fermenting biomass Biogas is a better fuel than animal dung cake because q (a)Biogas is a renewable source of energy (b) Animal dung cake has higher calorific value (c ) Biogas has high heating capacity (d )Biogas burns without smoke

Cattle are capable of digesting cellulose present in the grass and/or fodder that they eat. This ability is attributed to the (a) presence of cellulose degrading bacteria in the rumen (b) production of cellulose by the cattle rumen (c) acids present in the rumen (d) prolonged retention of cellulose in the rumen

The material A is fossil fuel which is extracted from the earth. It is said to be formed from the buried , large land plants by a very slow process B. When A is heated in the absence of air in a process called C, then it gives three products D, E, and F. The product D is used as a reducing agent in the extraction of metals the product E is used as an industrial fuel whereas the product F has been traditionally used for metalling the roads . c) Name the processes (i) B and (ii) C.