General Knowledge : Questions Answers : Environment Science

---

1.

What percentage of land area should remain covered by forest to maintain Ecological balance?

   A. 10%.

   B. 5%.

   C. 33%

   D. None of these.        

Answer: Option C

---

2.

Full form of CTBT is;

   A. Comprehensive Test Ban Treaty.

   B. Comprehensive Test Bank Trust.

   C. Comprehensive Trust Ban Treaty.

   D. Comprehensive Test Ban Trusty.

Answer: Option A

---

3.

Full form of BOD is;

   A. Bactorial Oxygen Demand.

   B. Biological Oxygen Demand.

   C. Biological Oxide Demand.

   D. None of these.

Answer: Option B

---

4.

In Atmosphere nitrogen consists of;

   A. 25%.

   B. 12%.

   C. 92%.

   D. 78%.

Answer: Option D

---

5.

Full form of COD is;

   A. Chemical Oxide Demand.

   B. Chemical Oxygen Demand.

   C. Chemical Ozone Demand.

   D. None of these.

Answer: Option B

                                               

   

                     FOR MORE QUERY:- www.acmeentranceexpert.com

                                  CALL:- 9810513909