Sources of Ener...

The conditions for producing biogas is

In addition to visible light, which other type of radiations are emitted by a 100w electric Lamp when it is glowing?

Geothermal energy is feasible in regions that-

The mass number of elements P, Q, R are 2, 180, 235 respectively which one of them is most suitable to make a hydrogen bomb?

Name the compound that is added to LPG to detect leakage

Match the following with correct response.
(1) Causes suffocation and headache
(2) Green house effect
(3) Acid Rain
(4) Smog

(A) CO₂
(B) NO₂
(C) SO₂
(D) CO

Match the following with correct response.
(1) The group of solar cells joined together in definite pattern
(2) The device used for obtaining energy for flowing water
(3) A barrier constructed on the river to store the flowing water
(4) A domestic fuel which contains butane

(A) Dam
(B) Solar panel
(C) LPG
(D) Water wheel

Match the following with correct response.
(1) Nuclear energy
(2) Geothermal energy
(3) Fission
(4) Nuclear fusion

(A) Two light weight nuclei combine to from a big nuclei
(B) energy present inside the earth's crust
(C) Energy obtained from the nucleus of an atom
(D) Breaking of heavy nucleus into two medium sized nuclei

Match the following with correct response.
(1) A component found in Natural gas
(2) By product obtained by destructive distillation of wood
(3) Combustible component of biogas
(4) Metal used for connecting solar cells in solar panel

(A) Methane
(B) Hydrogen
(C) Charcoal
(D) Silver

Match the following with correct response.
(1) Component of sunlight which carries heat energy
(2) Gases responsible for acid rain
(3) Process which converts solar energy into chemical energy
(4) Burns with explosion

(A) Sulphur dioxide and nitrogen dioxide
(B) Hydrogen
(C) Photosynthesis
(D) Infrared