Which layer of atmosphere is susceptible to storm and rain?
Or
What is the unit of concentration of ozone layer?
WBBSE
Class X
Physical Science
Concerns about our Environment
01 Mark
2025
Troposphere
Explanation:
Troposphere is the lowest layer nearest to Earth’s surface, where weather phenomena like storms, rain, and convection currents occur due to turbulent air.
Or
Dobson Unit (DU)
Explanation: Ozone layer concentration is measured in Dobson units (DU), where thinning leads to ozone holes.
Related Questions
More WBBSE Easy level questions
1/12
Q.
Name the greenhouse gas discharged from a refrigerator.
A.
CFC / HFC
Q.
Identify the greenhouse gas: (a) Oxygen (b) Hydrogen (c) Water vapour (d) Nitrogen
A.
(c) Water vapour Explanation: Greenhouse gases are gases that trap heat in...
Q.
What is now used in electrical circuits instead of fuse wire?
A.
MCB / Miniature circuit breaker
Q.
What type of lens is used as a magnifying glass?
A.
Convex lens Explanation: Convex lens forms virtual, erect, magnified image for objects...
Q.
Which metal is used as catalyst in Haber’s process for preparation of ammonia?
A.
The metal used as a catalyst in the Haber’s process for the...
Q.
Which gas is produced at the cathode during electrolysis of acidified water?
A.
Hydrogen. Explanation: In electrolysis of acidified water with Pt electrodes, H⁺ ions...
Q.
State True or False: Electrolysis always involves the process of oxidation-reduction.
A.
True. Explanation: Electrolysis drives chemical reactions using electrical energy, involving oxidation at...
Q.
Which one of the following is the unit of electrical energy? (a) Watt (b) Ohm...
A.
(c) Kilowatt-hour Explanation: Electrical power is defined as work done per unit...
Q.
Which type of mirror produces virtual, diminished and erect image?
A.
(c) Convex mirror Explanation: A convex mirror always forms an image which...
Q.
Which parameter remains unaltered during refraction of light?
A.
(c) Frequency Explanation: During refraction, a light ray bends because its speed...
Q.
The coefficient of thermal conduction depends on
A.
(b) property of the material of the conductor
Q.
Identify the triple bond unsaturated hydrocarbon: (a) CH₄ (b) C₂H₆ (c) C₂H₄ (d) C₂H₂
A.
(d) C₂H₂ Explanation: A triple bond unsaturated hydrocarbon belongs to the alkyne...