Q. 61. Which of the following techniques can be employed to control Oil Spills?
1. Bioremediation
2. Dispersion
3. Oil Booms
4. Burning
Select the correct answer using the code given below:
(A) 1, 2 and 3 only
(B) 1 and 3 only
(C) 2 and 4 only
(D) 1, 2, 3 and 4
Answer:
Explanation:
Q. 62. Consider the following statements with reference to the Plastic Waste Management (Amendment) Rules, 2022:
1. It has banned the manufacture and sale of plastic carry bags of less than 120 microns.
2. The producers and brand owners are required to provide the details of recycling certificates only from registered recyclers.
Which of the statements given above is/are correct?
(A) 1 only
(B) 2 only
(C) Both 1 and 2
(D) Neither 1 nor 2
Answer:
Explanation:
Q. 63. With reference to human glands, consider the following statements:
1. Pineal gland produces a hormone known as melatonin which influences the body’s internal clock.
2. Pancreas is an exocrine gland responsible for the production of stress hormone cortisol.
3. Parathyroid hormone (PTH) plays a significant role in calcium balance in the body.
Select the correct answer using the code given below:
(A) 1 and 2 only
(B) 2 and 3 only
(C) 1 and 3 only
(D) 1, 2 and 3
Answer:
Explanation:
Q. 64. Which one of the following statements is/are correct with reference to Cyanobacteria?
1. They lack chlorophyll and thus cannot perform photosynthesis.
2. Anabaena forms a symbiotic relationship with mosquito fern.
3. Unlike plant-based sugars, cyanobacterial biomass provides a nitrogen source in the form of proteins.
Select the correct answer using the code given below:
(A) 1 only
(B) 2 and 3 only
(C) 1 and 3 only
(D) 1, 2 and 3
Answer:
Explanation:
Q. 65. The term “Quasar”, sometimes seen in the news, is a:
(A) Basic unit of information in quantum computing.
(B) Rare species of deep-sea fish recently discovered in the Mariana Trench
(C) Rotating column of air forming a pendant from a cumulus cloud with circulation not reaching the ground.
(D) A bright core of active galaxies in a distant universe
Answer:
Explanation: