Pollution in big cities can be controlled to a large extent by –
(1)Improving traffic condition and road.
(2)Road side plantation
(3)Proper disposal of garbage and domestic as well as municipal wastes.
(4)Cannot be controlled

(1) and (2)
(2) and (3)
(1) and (4)
All of these

Match Column – I with Column – II

A→(2); B→(1); C→(4); D→(5); E →(3)
A→(4); B→(1); C→(2); D→(3); E →(5)
A→(3); B→(2); C→(4); D→(1); E →(5)
A→(5); B→(3); C→(1); D→(2); E →(4)

Match Column – I with Column – II

A→(2); B→(3); C→(1); D→(2); E →(4)
A→(5); B→(3); C→(1); D→(2); E →(4)
A→(3); B→(4); C→(5); D→(1); E →(2)
A→(2); B→(5); C→(4); D→(3); E →(1)

Which of the following figures shows correct relative contribution of greenhouse gases to global warming?

Which one of the following is not correct as regards the harmful effects of particulate matter of the size 2.5 micro meters or less?

It can be inhaled into the lungs
It can cause respiratory problems
It can directly enter into our circulatory system
It can cause inflammation and damage to the lungs

Solution

According to Centrol Pollution Control Board (CPCB)particulate size 2.5 micrometers or less in diameter are responsible for causing various breathing and respiratory problems. They can also cause irritation, inflammations, damage to the lungs and premature deaths.

Climate of the world is threatened by

Increasing concentration of atmospheric oxygen
Decreasing amount of atmospheric oxygen
Increasing amount of atmospheric carbondioxide
Decreasing amount of atmospheric carbondioxide

Solution

The increase in the level of green house gases (e.g., CO₂,CH₄, CFC, N₂O etc.) has led to the considerable heating of earth surface leading to global warming. The relative contributions of various green house gases to global warming is CO₂(60%) > CH₄(20%) > CFC (14%) > N₂O (6%)

The second commitment period for Kyoto Protocol was decided at

Cancun
Durban
Bali
Doha

Solution

The Kyoto Protocol is an international agreement linked to the United Nations Framework Convention on climate change which commits its parties by setting internationally binding emissions reduction targets. In Doha, Qataron 8 December 2012, the “Doha Amendment to the Kyoto Protocol” was adopted. The second commitment period was from 1st Jan. 2013 to 31^st Dec. 2020.

Global warming can be controlled by :

Reducing reforestation, increasing the use of fossil fuel.
Increasing deforestation, slowing down the growth of human population.
Increasing deforestation, reducing efficiency of energy usage.
Reducing deforestation, cutting down use of fossil fuel.

Solution

In first three options CO₂ concentration increases but it is decreases in option (d). Global warming is increase of earth’s average temperature. Global warming is due to green house effect which is naturally occurring phenomenon that is responsible for heating of Earth’s surface and atmosphere. The main green house gas is carbon-di-acid (contribute 60%).

Kyoto Protocol was endorsed at :

CoP - 5
CoP - 6
CoP - 4
CoP - 3

Solution

In year 1997, at the conference of parties III (COP - 3) ,Kyoto, Japan the Kyoto conference on climate change took place. In that conference developed countries agreed to specific targets for cutting their emissions of greenhouse gases. A general framework has defined for this with specifics to be detailed in next few years. This become known as the kyoto protocol.

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