What is 'Greenhouse Gas Protocol'?

• It is an international accounting tool for government and business leaders to understand, quantify, and manage greenhouse gas emissions
• It is an initiative of the United Nations to offer financial incentives to developing countries to reduce greenhouse gas emissions and to adopt ecofriendly technologies
• t is an inter-governmental agreement ratified by all the member countries of the United Nations to reduce greenhouse gas emissions to specified levels by the year 2030
• It is one of the multi-lateral REDD+ initiatives hosted by the World Bank

Which of the following elements does sugar contain?

(i) Carbon

(ii) Nitrogen

(iii) Hydrogen

(iv) Oxygen

Select the correct answer using the codes given below.

• (i), (iii) and (iv) only
• (i), (ii) and (iii) only
• (i) and (iii) only
• (i) and (iv) only

Solutions are of many types. Consider the following types of solution with an example each:

(i) Gas in liquid - Vinegar

(ii) Solid in liquid - Brine

(iii) Solid in solid - Brass

(iv) Liquid in liquid - Coca-Cola

Select the correctly matched pairs using the codes given below.

• (i) and (ii) only
• (ii) and (iii) only
• (i), (iii) and (iv) only
• (ii), (iii) and (iv) only

Consider the following pairs of scientists and Discoveries :

  discoveries  :  Scientists

(i) Copernicus : Law of gravitation

(ii) Kepler : Laws of planetary motion

(iii) Galileo : Moons of Jupiter

(iv) Newton : Heliocentric theory

Select the correctly matched pairs using the codes given below.

• (i) and (ii) only
• (i), (ii) and (iii) only
• (i), (ii), (iii) and (iv)
• (ii) and (iii) only

One should not connect a number of electrical appliances to the same power socket because

(i) this can damage the appliances

(ii) this can damage the domestic wiring due to overheating

(iii) the appliances will not get full voltage

Select the valid reason/reasons using the codes given below.

• (ii) and (iii) only
• (ii) only
• (i) and (ii) only
• (iii) only

For a given liquid, the rate of evaporation depends on

(i) the temperature of the liquid

(ii) the temperature of air

(iii) the surface area of the liquid

Select the correct factor/factors using the codes given below.

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

Which of the following groups contains/contain only nonbiodegradable materials?

(i) Wood, paper, leather

(ii) Plastic, bakelite, DDT

(iii) Plastic, thermocol, wood

(iv) Thermocol, plates made from dried leaves, detergents

Select the correct answer using the codes given below.

• (i) and (ii) only
• (ii) only
• (ii) and (iii) only
• (iii) and (iv) only

Paddy fields are chief sources of which of the following greenhouse gases?

(i) Methane

(ii) Carbon dioxide

(iii) Nitrous oxide

(iv) Ozone

Select the correct answer using the codes given below.

• (i) only
• (ii) only
• (i) and (iii) only
• (ii), (iii) and (iv) only

The mass of a body is different from its weight because

(i) mass is a variable quantity whereas weight is constant

(ii) mass varies very little at different places whereas weight varies a lot

(iii) mass is constant but weight decreases as the body moves from the Poles to the Equator

(iv) mass is a measure of quantity of matter whereas weight is a force

Select the correct reason/reasons using the codes given below.

• (i) only
• (ii) and (iv) only
• (iii) only
• (iii) and (iv) only

It is easier to roll a barrel than to pull it because

• the full weight of the barrel comes into play when it is pulled
• rolling friction is much less than sliding friction
• the surface area of the barrel in contact with the road is more in case of pulling
• of a reason other than those mentioned