Q233. Which of the following can be threats to the biodiversity of a geographical area? 1. Global warming 2. Fragmentation of habitat 3. Invasion of alien species 4. Promotion of vegetarianism Select the correct answer using the codes given below:

Biodiversity forms the basis for human existence in the following ways: 1. Soil formation 2. Prevention of soil erosion 3. Recycling of waste 4. Pollination of

Three of the following criteria have contributed to the recognition of Western Ghats-Sri Lanka and Indo-Burma regions as hotspots of biodiversity: 1. Species ri

With reference to India, consider the following Central Acts: 1. Import and Export (Control) Act, 1947 2. Mining and Mineral development (Regulation) Act, 1957

Consider the following international agreements: 1. The International Treaty on Plant Genetic Resources for Food and Agriculture. 2. The United Nations Conventi

Consider the following: 1. Rice fields 2. Coal mining 3. Domestic animals 4. Wet lands Which of the above are sources of methane, a major greenhouse gas?

The scientific view is that the increase in global temperature should not exceed 2°C above the pre-industrial level. If the global temperature increases beyond

What are the reasons for the people’s resistance to the introduction of Bt brinjal in India? 1. Bt brinjal has been created by inserting a gene from a soil fung

In the context of India, which of the following is/are considered to be practice(s) of eco-friendly agriculture? 1. Crop diversification 2. Legume intensificati

Consider the following regions : 1. Eastern Himalayas 2. Eastern Mediterranean region 3. North-Western Australia Which of the above is/are Biodiversity Hotspot(

Consider the following statements: 1. Some species of turtles are herbivores. 2. Some species of fish are herbivores. 3. Some species of marine mammals are herb

Lead, ingested or inhaled, is a health hazard. After the addition of lead to petrol has been banned, what still are the sources of lead poisoning? 1. Smelting u

In the context of mitigating the impending global warming due to anthropogenic emissions of carbon dioxide, which of the following can be potential sites for ca

The acidification of oceans is increasing. Why is this phenomenon a cause of concern: 1. The growth and survival of calcareous phytoplankton will be adversely a

The vegetation of savannah consists of grassland with scattered small trees, but extensive areas have no trees. The forest development in such areas is generall

Consider the following statements: 1. Biodiversity is normally greater in the lower latitudes as compared to the higher latitudes. 2. Along the mountain gradien

Consider the following statements: 1. Biodiversity hotspots are located only in tropical regions. 2. India has four biodiversity hotspots i.e., Eastern Himalaya

Due to some reasons, if there is a huge fall in the population of species of butterflies, what could be its likely consequence/consequences? 1. Pollination of s

Consider the following: 1. Carbon monoxide 2. Methane 3. Ozone 4. Sulphur dioxide Which of the above are released into the atmosphere due to the burning of crop

Due to their extensive rice cultivation, some regions may be contributing to global warming. To what possible reason/ reasons is this attributable? 1. The anaer

The Himalayan Range is very rich in species diversity. Which one among the following is the most appropriate reason for this phenomenon?

The “Red Data Books” published by the International Union for Conservation of Nature and Natural Resource (IUCN) contain lists of 1. Endemic plant and animal sp

Why is a plant called Prosopis juliflora often mentioned in the news?

With reference to prepackaged items in India, it is mandatory for the manufacturer to put the following information on the main label, as per the Food Safety an

Consider the following statements regarding environmental issues in India : (a) Gulf of Mannar is one of the biosphere reserves (b) The Ganga Action Plan, phase

Which of the following statements is/are correct? Proper design and effective implementation of UN-REDD+ Programme can significantly contribute to: 1. protectio

Consider the following: 1. Black-necked crane 2. Cheetah 3. Flying Squirrel 4. Snow Leopard Which of the above are naturally found in India?

A sandy and saline area is the natural habitat of an Indian animal species. The animal has no predators in that area but its existence is threatened d

Consider the following statements: 1. Salt-water crocodile is found in the Andaman and Nicobar Islands. 2. Shrew and tapir are found in the Western Gh

Consider the following animals of India: 1. Crocodile 2. Elephant Which of these is/are endangered species?

The organisms “Cicada, Froghopper, and Pond skater” are:

With reference to perfluoroalkyl and polyfluoroalkyl substances (PFAS) that are used in making many consumer products, consider the following statemen

Consider the following statements: Statement-I: Many chewing gums found in the market are a source of environmental pollution. Statement-II: Many che

Consider the following statements: Statement-I: The Indian Flying Fox is placed under the “vermin” category in the Wild Life (Protection) Act, 1972. S