UPSC Environment & Ecology Questions

Which one of the following terms describes not only the physical space occupied by an organism but also its functional role in the community of organisms?

Fruits stored in a cold chamber exhibit longer storage life because

Many transplanted seedlings do not grow because

Mycorrhizal biotechnology has been used in rehabilitating degraded sites because mycorrhiza enables the plants to 1. Resist drought and increase the absorptive …

With reference to the usefulness of the by-products of the sugar industry, which of the following statements is/are correct? 1. Bagasse can be used as biomass f…

Due to improper/indiscriminate disposal of old and used computers or their parts, which of the following are released into the environment as e-waste? 1. Beryll…

With reference to food chains in ecosystems, consider the following statements: 1. A food chain illustrates the order in which a chain of organisms feeds upon e…

Acid rain is caused by the pollution of environment by

Which of the following adds/add nitrogen to the soil? 1. Excretion of urea by animals 2. Burning of coal by man 3. Death of vegetation Select the correct answer…

Which one of the following is the correct sequence of ecosystems in the order of decreasing productivity?

Photochemical smog is a resultant of the reaction among

Which one of the following terms describes not only the physical space occupied by an organism but also its functional role in the community of organisms?

Which of the following can be found as pollutants in the drinking water in some parts of India? 1. Arsenic 2. Sorbitol 3. Fluoride 4. Formaldehyde 5. Uranium

With reference to the food chains in ecosystems, which of the following kinds of organism is/are known as decomposer organism/organisms? 1. Virus 2. Fungi 3. Ba…

In the grasslands, trees do not replace the grasses as a part of an ecological succession because of

Consider the following crops: 1. Cotton 2. Groundnut 3. Rice 4. Wheat Which of these are Kharif crops?

Improper handling and storage of cereal grains and oilseeds result in the production of toxins known as aflatoxins which are not generally destroyed by normal c…

Which of the following leaf modifications occurs/occur in desert areas to inhibit water loss? 1. Hard and waxy leaves 2. Small or absent leaves 3. Spines instea…

During a thunderstorm, the thunder in the skies is produced by the

With reference to the wetlands of India, consider the following statements: 1. The country's total geographical area under the category of wetlands is recorded …