Q128. Steel slag can be the material for which of the following? 1. Construction of base road 2. Improvement of agricultural soil 3. Production of cement Select the correct answer using the code given below:

In rural road construction, the use of which of the following is preferred for ensuring environmental sustainability or to reduce carbon footprint? 1. Copper sl

With reference to ‘fly ash’ produced by the power plants using coal as fuel, which of the following statements is/are correct? 1. Fly ash can be used in the pro

Why is there a concern about copper smelting plants? 1. They may release lethal quantities of carbon monoxide into the environment. 2. The copper slag can cause

What is/are the advantage/ advantages of zero tillage in agriculture? 1. Sowing of wheat is possible without burning the residue of the previous crop. 2. Withou

With reference to the usefulness of the byproducts of the sugar industry, which of the following statements is/are correct? 1. Bagasse can be used as biomass fu

What is the use of biochar in farming? 1. Biochar can be used as a part of the growing medium in vertical farming. 2. When biochar is a part of the growing medi

Which of the following are some important pollutants released by the steel industry in India? 1. Oxides of sulphur 2. Oxide of nitrogen 3. Carbon monoxide 4. Ca

Consider the following activities: 1. Spreading finely ground basalt rock on farmlands extensively 2. Increasing the alkalinity of oceans by adding lime 3. Capt

With reference to agricultural soils, consider the following statements: 1. A high content of organic matter in soil drastically reduces its water holding capa

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

In the Union Budget 2011-12, a full exemption from the basic customs duty was extended to the bio-based asphalt (bioasphalt). What is the importance of this mat

Consider the following statements: 1. Molasses is a by-product of the sugar production process. 2. Bagasse obtained in the sugar mills is used as a fuel in the

Consider the following statements: 1. Agricultural soils release nitrogen oxides into the environment. 2. Cattle release ammonia into the environment. 3. Poultr

With reference to furnace oil, consider the following statements: 1. It is a product of oil refineries. 2. Some industries use it to generate power. 3. Its use

Which of the following statements can help in water conservation in agriculture? 1. Reduced or zero tillage of the land 2. Applying gypsum before irrigating th

There is some concern regarding the nanoparticles of some chemical elements that are used by the industry in the manufacture of various products. Why? 1. They c

Consider the following statements: 1. Coal ash contains arsenic, lead and mercury. 2. Coal-fired power plants release sulphur dioxide and oxides of nitrogen int

With reference to Neem tree, consider the following statements: 1. Neem oil can be used as a pesticide to control the proliferation of some species of insects a

Consider the following agricultural practices: 1. Contour bunding 2. Relay cropping 3. Zero tillage In the context of global climate change, which of the abov

With reference to agriculture in India, how can the technique of ‘genome sequencing’, often seen in the news, be used in the immediate future? 1. Genome sequenc

Consider the following statements: The nation-wide ‘Soil Health Card Scheme’ aims at: 1. Expanding the cultivable area under irrigation. 2. Enabling the banks t

In which of the following are hydrogels used? 1. Controlled drug delivery in patients 2. Mobile air-conditioning systems 3. Preparation of industrial lubricants

Which of the following is/are the characteristic/characteristics of Indian coal ? 1. High ash content 2. Low sulphur content 3. Low ash fusion temperature Sele

“System of rice Intensification” of cultivation, in which alternate wetting and drying of rice fields is practised, results in: 1. Reduced seed requirement 2. R

Microbial fuel cells are considered a source of sustainable energy. Why? 1. They use living organisms as catalysts to generate electricity from certain substrat

Consider the following statements : Coke is one of the materials of the charge added to blast furnaces for the production of steel/iron. Its function is to: 1.

Consider the following activities: 1. Spraying pesticides on a crop field 2. Inspecting the craters of active volcanoes 3. Collecting breath samples from spouti

Consider the following statements: 1. Baking soda is used in fire extinguishers. 2. Quick lime is used in the manufacture of glass. 3. Gypsum is used in the man

What can be the impact of excessive/inappropriate use of nitrogenous fertilizers in agriculture? 1. Proliferation of nitrogen fixing microorganisms in soil can

With reference to chemical fertilisers in India, consider the following statements: 1. At present, the retail price of chemical fertilisers is market-driven and

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

According to the Environmental Protection Agency (EPA), which one of the following is the largest source of sulphur dioxide emissions?

Consider the following statements: Statement I: India does not import apples from the United States of America. Statement II: In India, the law prohib

Which one of the following has been constituted under the Environment (Protection) Act, 1986?

With reference to Indian laws about wildlife protection, consider the following statements: 1. Wild animals are the sole property of the government. 2

If a particular plant species is placed under Schedule VI of The Wildlife Protection Act, 1972, what is the implication?

Consider the following statements: 1. The definition of "Critical Wildlife Habitat" is incorporated in the Forest Rights Act, 2006. 2. For the first t

The United Nations Framework Convention on Climate Change (UNFCCC) is an international treaty drawn at: