Download App

Atmospheric Pollution — CHEMISTRY STD 9 — Question

ICSE BoardEnglish MediumSTD 9CHEMISTRYAtmospheric Pollution2 Marks
Question
(a) Define the term global warming.
(b) Name three gases responsible for global warming.
✓

Answer

(a) Global warming is the long-term heating of Earth’s surface observed since the pre-industrial period due to human activities, primarily fossil fuel burning, which increases heat-trapping greenhouse gas levels in Earth’s atmosphere

(b) gases responsible for global warming.

• Carbon Dioxide.
• Methane.
• Nitrous Oxide.
• Fluorinated Gases.

Need a full question paper?

Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.

Start Generating Free

Explore more

More "[2 Mark Question Answer]" from Atmospheric Pollution→Atmospheric Pollution — all question types→CHEMISTRY STD 9 question papers→ICSE Board STD 9 question papers→ICSE Board question paper generator→

Similar questions

What do you observe when HCI is passed through a silver nitrate solution.
→
Define chemical change
→
(a)What is the other name of a noble gas?
(b) Why are the atoms of noble gases unreactive?
(c) Why are the atoms of elements other than noble gases reactive?
→
A small piece of calcium metal is put into a small trough containing water. There is effervescence and white turbidity is formed.
What do you observe when a few drops of red litmus solution are added to the turbid solution.
→
Briefly state problems created by the acid rain.
→
What do you understand by the term electronic configuration? State Bohr-Bury’s scheme of electronic configuration.
→
Hydrogen may be prepared in the laboratory by the action of a metal on an acid.
Which of the acids dilute sulphuric, concentrated sulphuric, dilute nitric acid and concentrated nitric acid would you choose? Explain why you would not use the acids you reject.
→
Calculate the molecular mass of the following:
$Na_2SO_4.10H_2O$
Given atomic mass of $Cu = 63·5, H = 1, O = 16, C = 12, N = 14, Mg = 24, S = 32$
→
State the sources and effects of the following gas:
Carbon dioxide
→
Give the orbital diagram of the following:
Magnesium chloride
→