Environment

Biodiversity, climate change, pollution, protected areas. Filter by topic or year.

5 questions

2019 · Question 30 · Pollution
Why is there a great concern about the ‘microbeads’ that are released into environment?
Choose your answer(a)They are considered harmful to marine ecosystems.(b)They are considered to cause skin cancer in children.(c)They are small enough to be absorbed by crop plants in irrigated fields.(d)They are often found to be used as food adulterants.
Source: UPSC, Civil Services (Preliminary), General Studies Paper I (opens in a new tab)
2019 · Question 35 · Pollution
Consider the following : 1. Carbon monoxide 2. Methane 3. Ozone 4. Sulphur dioxide Which of the above are released into atmosphere due to the burning of crop/biomass residue?
Choose your answer(a)1 and 2 only(b)2, 3 and 4 only(c)1 and 4 only(d)1, 2, 3 and 4
Source: UPSC, Civil Services (Preliminary), General Studies Paper I (opens in a new tab)
2019 · Question 39 · Pollution
In India, the use of carbofuran, methyl parathion, phorate and triazophos is viewed with apprehension. These chemicals are used as
Choose your answer(a)pesticides in agriculture(b)preservatives in processed foods(c)fruit-ripening agents(d)moisturising agents in cosmetics
Source: UPSC, Civil Services (Preliminary), General Studies Paper I (opens in a new tab)
2019 · Question 41 · Pollution
Consider the following statements : 1. Agricultural soils release nitrogen oxides into environment. 2. Cattle release ammonia into environment. 3. Poultry industry releases reactive nitrogen compounds into environment. Which of the statements given above is/are correct?
Choose your answer(a)1 and 3 only(b)2 and 3 only(c)2 only(d)1, 2 and 3
Source: UPSC, Civil Services (Preliminary), General Studies Paper I (opens in a new tab)
2019 · Question 43 · Pollution
In the context of proposals to the use of hydrogen-enriched CNG (H-CNG) as fuel for buses in public transport, consider the following statements : 1. The main advantage of the use of H-CNG is the elimination of carbon monoxide emissions. 2. H-CNG as fuel reduces carbon dioxide and hydrocarbon emissions. 3. Hydrogen up to one-fifth by volume can be blended with CNG as fuel for buses. 4. H-CNG makes the fuel less expensive than CNG. Which of the statements given above is/are correct?
Choose your answer(a)1 only(b)2 and 3 only(c)4 only(d)1, 2, 3 and 4
Source: UPSC, Civil Services (Preliminary), General Studies Paper I (opens in a new tab)

Why is there a great concern about the ‘microbeads’ that are released into environment?

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

In India, the use of carbofuran, methyl parathion, phorate and triazophos is viewed with apprehension. These chemicals are used as

Consider the following statements : 1. Agricultural soils release nitrogen oxides into environment. 2. Cattle release ammonia into environment. 3. Poultry industry releases reactive nitrogen compounds into environment. Which of the statements given above is/are correct?