Download App

Natural Resources — Science STD 9 — Question

Gujarat BoardEnglish MediumSTD 9ScienceNatural Resources1 Mark
MCQ
Greenhouse effect is caused by:
  • A
    Green plants.
  • ✓
    Infrared rays.
  • C
    $UV-$rays.
  • D
    $X-$rays.
✓

Answer

Correct option: B.
Infrared rays.

Greenhouse effect is caused by infrared rays. Gases like carbon dioxide absorb infrared rays, thereby increasing the temperature of earth and hence causing greenhouse effect.

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 "M.C.Q. [1 M]" from Natural Resources→Natural Resources — all question types→Science STD 9 question papers→Gujarat Board STD 9 question papers→Gujarat Board question paper generator→

Similar questions

Goitre is caused due to deficiency of disease$?$
→
On converting $25^\circ C, 38^\circ C$ and $66^\circ C$ to Kelvin scale, the correct sequence of temperature will be:
→
A wooden block of volume $1000cm^3$ is suspended from a spring balance. It weighs $12\ N$ in air. It is suspended in water such that half of the block is below the water. The reading of the spring balance is:
→
The symbol of copper is:
→
Identify the correct statement:
→
Sound travels in air:
→
What happens when ink is dropped in water:
→
Brine or salt is an example of :
→
If you live in a overcrowded and poorly ventilated house, it is possible that you may suffer from which of the following diseases
→
Which of the following statement is correct about the atom of and element$?$
→