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Question 1760

In India temperate evergreen type of vegetation is found mostly in:

ARajasthan and South Punjab

BWestern Ghats and Assam

CWestern Himalayas above 3500 m

DEastern and Western Himalayas less than 3500 m.

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C. Western Himalayas above 3500 mExplanation not yet available.

Question 1759

Which of the following statements is not correct ?

ASilver Revolution refers to increased pulse production.

BWhite Revolution refers to increased milk production.

CGreen Revolution refers to increased production of food grains.

DYellow Revolution refers to increased oil-seed production.

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A. Silver Revolution refers to increased pulse production.The statement “Silver Revolution refers to increased pulse production” is incorrect. The Silver Revolution actually refers to the rapid increase in egg and poultry production in India during the 1980s, which boosted nutrition and rural income. White Revolution: Increased milk production under Dr. Verghese Kurien.Green Revolution: Rise in food grain output (wheat, rice) using high-yield varieties.Yellow Revolution: Boosted oilseed production for self-sufficiency in edible oils.

Question 1758

The process in which living organisms are used to remove contaminants, pollution or other unwanted substances from soil or water is known as:

ABiotechnology

Bbioremediation

CBiodegradation

DBiomagnification

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B. bioremediationBioremediation is the process by which living organisms — mainly microbes, fungi, or plants — are used to remove or neutralize contaminants, pollutants, or toxins from soil, water, or air. These organisms break down harmful substances into less toxic or non-toxic forms, helping to clean up polluted environments naturally. It is an eco-friendly and cost-effective method for environmental restoration. Other options (for context) Biotechnology: A broader field involving the use of living systems for industrial, agricultural, or medical purposes. Biodegradation: The natural breakdown of organic materials by microorganisms, but not necessarily aimed at pollution cleanup. Biomagnification: The accumulation of toxic substances in the food chain, opposite of pollution removal.

Question 1757

Which of the following diseases is caused by H1N1, virus ?

ASwine flu

BDengue

CAIDS

DBird flu

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A. Swine fluSwine Flu is caused by the H1N1 virus, a subtype of the Influenza A virus. It primarily affects the respiratory system and is transmitted from person to person through droplets from coughs or sneezes. Symptoms include fever, cough, sore throat, body aches, and fatigue. The H1N1 pandemic in 2009 was declared a global health emergency by the World Health Organization (WHO). Other options (for context) Dengue: Caused by the Dengue virus, transmitted by Aedes mosquitoes. AIDS: Caused by the HIV (Human Immunodeficiency Virus), not H1N1. Bird flu: Caused by the H5N1 virus, not H1N1.

Question 1756

Green muffler is used against which type of pollution ?

AAir

BNoise

CSoil

DWater

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B. NoiseThe Green Muffler technique is used to control noise pollution. It involves planting dense rows of trees and shrubs around roads, industrial areas, and public places. The vegetation acts as a natural sound barrier by absorbing, deflecting, and refracting sound waves, thereby reducing the intensity of noise reaching nearby areas. Common plants used for green mufflers include Neem, Ashoka, Ficus, and Cassia. Other options (for context) Air pollution: Controlled by measures like emission filters and afforestation, but not directly by green mufflers. Soil pollution: Managed by waste treatment and reduced chemical use, not vegetation barriers. Water pollution: Controlled by sewage treatment and reducing industrial discharge, not by plants as mufflers.

Question 1755

Metals can be beaten into sheets, because:

Athey are ductile

Bthey are soft

Cthey are malleable

Dthe metal particles are loosely arranged

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C. they are malleableMetals can be beaten into thin sheets because they are malleable. Malleability is a physical property of metals that allows them to withstand hammering or rolling without breaking. This property is due to the metallic bonding where positive metal ions are surrounded by a ‘sea’ of delocalized electrons, allowing the layers of atoms to slide over each other without breaking the bond. Examples of highly malleable metals include gold, silver, and aluminium. Other options (for context) Ductile: Refers to the ability of metals to be drawn into wires, not beaten into sheets. Soft: Not true for all metals — many are hard yet malleable. Loosely arranged particles: Incorrect — metal atoms are closely packed in a lattice structure.

Question 1754

Insecticides usually act upon:

AMuscular system

BDigestive system

CNervous system

Dnone of these

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C. Nervous systemInsecticides primarily act upon the nervous system of insects. They interfere with the transmission of nerve impulses, leading to paralysis and ultimately death. Common insecticides like organophosphates and carbamates inhibit the enzyme acetylcholinesterase, causing continuous nerve stimulation. Some others, like pyrethroids, disrupt sodium channel functioning in nerve cells. Other options (for context) Muscular system: Indirectly affected due to nerve failure, but not the primary target. Digestive system: Rarely affected — insecticides mainly disrupt neural signaling, not digestion.

Question 1753

Atom bomb is based on:

AChemical reaction

BNuclear fission

CNuclear fusion

DAtomic collision

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B. Nuclear fissionAn Atom bomb works on the principle of nuclear fission. In this process, the nucleus of a heavy atom such as Uranium-235 or Plutonium-239 splits into two or more smaller nuclei when bombarded with a neutron. This splitting releases a tremendous amount of energy along with more neutrons, which further cause chain reactions — leading to a massive explosion. Other options (for context) Chemical reaction: Produces far less energy; used in conventional explosives, not atomic bombs. Nuclear fusion: Powers hydrogen bombs (thermonuclear bombs), not atomic bombs. Atomic collision: General term — does not describe the chain reaction mechanism in fission.

Question 1752

Which of the following is/are not associated with the reduction of Greenhouse gases ? i) Kigali Amendment to Montreal Protocol ii) Stockholm convention iii) Kyoto Protocol

A(ii) only

B(i) and (ii) only

C(i) and (iii) only

D(i), (ii) and (iii)

Show answer

A. (ii) onlyThe Stockholm Convention is not associated with the reduction of greenhouse gases. It focuses on eliminating or restricting the production and use of persistent organic pollutants (POPs) — toxic chemicals that remain in the environment for long periods, such as DDT and PCBs. It does not directly address greenhouse gas emissions or climate change. Other options (for context) Kigali Amendment to the Montreal Protocol: Aims to phase down the use of hydrofluorocarbons (HFCs), which are potent greenhouse gases used in refrigerants — hence it helps reduce global warming. Kyoto Protocol: An international treaty adopted in 1997 to reduce greenhouse gas emissions by developed countries, directly targeting climate change.

Question 1751

Which of the following Committees are related to Banking reforms: i) Narsimham Committee ii) P J Nayak Committee iii) Sunil Mehta Committee iv) Nachiket Mor Committee

A(i), (ii) and (iii) only

B(ii), (iii) and (iv) only

C(i) and (iv) only

D(i), (ii), (iii) and (iv)

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D. (i), (ii), (iii) and (iv)Explanation not yet available.

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Explore the question bank

In India temperate evergreen type of vegetation is found mostly in:

Which of the following statements is not correct ?

The process in which living organisms are used to remove contaminants, pollution or other unwanted substances from soil or water is known as:

Which of the following diseases is caused by H1N1, virus ?

Green muffler is used against which type of pollution ?

Metals can be beaten into sheets, because:

Insecticides usually act upon:

Atom bomb is based on:

Which of the following is/are not associated with the reduction of Greenhouse gases ? i) Kigali Amendment to Montreal Protocol ii) Stockholm convention iii) Kyoto Protocol

Which of the following Committees are related to Banking reforms: i) Narsimham Committee ii) P J Nayak Committee iii) Sunil Mehta Committee iv) Nachiket Mor Committee

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