1. What are clouds mainly composed of?
(a). Water vapour
(b). Dust particles
(c). Water droplets or ice particles
(d). Oxygen
2. Which process is responsible for the formation of clouds?
(a). Evaporation
(b). Condensation
(c). Precipitation
(d). Transpiration
3. What triggers condensation in the atmosphere?
(a). Rising temperature
(b). Rising wind and adiabatic cooling
(c). Decreasing humidity
(d). Low pressure zone
4. Which particles serve as nuclei for cloud formation?
(a). Ice crystals
(b). Hygroscopic nuclei
(c). Dust particles
(d). Oxygen molecules
5. Who pioneered the classification of clouds?
(a). Isaac Newton
(b). Luke Howard
(c). Albert Einstein
(d). Galileo Galilei
6. Which of the following is a type of high cloud?
(a). Stratus
(b). Altocumulus
(c). Cirrus
(d). Nimbostratus
7. What is the altitude range of high clouds?
(a). 2000-6000 m
(b). 6000-12000 m
(c). 1000-3000 m
(d). 10000-15000 m
8. Which type of cloud forms a thin, milky sheet and can create a halo around the sun or moon?
(a). Cirrostratus
(b). Stratus
(c). Cumulus
(d). Nimbostratus
9. Which cloud type looks like thin threads or feathers?
(a). Altostratus
(b). Cirrus
(c). Stratocumulus
(d). Cumulonimbus
10. Which of the following is a middle cloud?
(a). Cirrostratus
(b). Altostratus
(c). Nimbostratus
(d). Cumulonimbus
11. What is the nickname of altocumulus clouds?
(a). Sheep clouds
(b). Rain clouds
(c). Fog clouds
(d). Noctilucent clouds
12. What is the altitude range of middle clouds?
(a). 1000-3000 m
(b). 2000-6000 m
(c). 6000-12000 m
(d). Up to 2000 m
13.Which type of cloud forms in a uniform grey sheet and often obscures the sun?
(a). Cirrostratus
(b). Altostratus
(c). Stratocumulus
(d). Cumulus
14. Which type of cloud is usually associated with light drizzle and looks like fog?
(a). Stratus
(b). Altostratus
(c). Cirrus
(d). Cumulonimbus
15. What is one characteristic of stratocumulus clouds?
(a). Tall and imposing
(b). Dark and dense
(c). Globular clusters that are arranged in lines or waves
(d). Thin and slender
16. Which type of cloud is usually called a “rain cloud”?
(a). Cirrus
(b). Nimbostratus
(c). Cumulus
(d). Altocumulus
17. At what height do low clouds usually form?
(a). 6000-12000 m
(b). 2000-6000 m
(c). Up to 2000 m
(d). 1000-3000 m
18. Which type of clouds are associated with good weather and are dome shaped?
(a). Cirrostratus
(b). Cumulus
(c). Stratus
(d). Altostratus
19. Which cloud type is known for its high, cauliflower-like appearance?
(a). Cirrocumulus
(b). Nimbostratus
(c). Cumulonimbus
(d). Stratocumulus
20. What is the typical shape of cumulonimbus clouds?
(a). Anvil-shaped top
(b). Thin and feathery
(c). Globular clusters
(d). Sheet-like layers
21. Which cloud type can be seen during tropical afternoons, especially in summer?
(a). Cumulonimbus
(b). Cirrus
(c). Stratocumulus
(d). Altostratus
22. Noctilucent clouds are mainly composed of?
(a). Water vapour
(b). Dust particles
(c). Ice crystals
(d). Hygroscopic nuclei
23. What is the other name of noctilucent clouds?
(a). Rain clouds
(b). Noctilucent clouds
(c). Sheep clouds
(d). Fog clouds
24. Where are noctilucent clouds usually observed?
(a). Near the equator
(b). In the mesosphere
(c). In the stratosphere
(d). At ground level
25. At what altitude are polar mesospheric clouds (PMC) visible?
(a). 1000-3000 m
(b). 2000-6000 m
(c). Near the summer polar mesopause
(d). At the Earth’s surface
26. What colour shades are noctilucent clouds known for?
(a). Blue and silver
(b). Red and orange
(c). Yellow and green
(d). Pink and purple
27. Which type of motion causes clouds to form through adiabatic cooling?
(a). Horizontal motion
(b). Rising air
(c). Falling air
(d). Circulating air
28. What nickname are cirrus clouds given because of their appearance?
(a). Rain clouds
(b). Tales of Mars
(c). Sheep clouds
(d). Fog clouds
29. Which type of cloud is known for creating a “halo” effect around the sun or moon?
(a). Cirrostratus
(b). Altostratus
(c). Stratocumulus
(d). Nimbostratus
30. Which atmospheric feature causes clouds to form when air is forced to rise above it?
(a). Ocean
(b). Mountains
(c). Valleys
(d). Deserts