Most Important Pdf Notes of Pakistan Air Force,important mcqs of everyday science mostly repeated in past papers.
1. All animals can be put into one group called the .
a). living group b). animal group c). plant group
2. Animals which have a skeleton of bones can be divided into classes.
a). 1 b). 3 c). 5
3. A starfish moves about in the water with its .
a). legs b). tube feet c). fins
4. A snail has a soft body that is protected by .
a).spines b). bones c). a shell
5. Animals, which have a soft body and no legs, are called
a).worms b). crabs c). oysters
6. Fish breathe in water by their .
a).gills b). lungs c). skin
7. Birds have no .
a).beak b). claws c).teeth
8. An is an animal that spends part of its life in water and part of it on land.
a).fish b). amphibian c). reptile
9. Plants like the cactus grow in .
a).wet shady places b). hot and dry places c) water
10. Plants need to make food.
a).air and water b). air, water, and chlorophyll c). water and chlorophyll
11. Plants that do not have flowers cannot make .
a).stems and roots b). fruits and seeds c). leaves and buds
12. Ferns and mosses make that can grow into new plants.
a).seeds b). spores c). pollen
13. The small green leaves that cover the bud are called .
a).sepals b). petals c). carpels
14. Some trees do not have flowers and fruits but they make seeds inside .
a).carpels b). cones c). pods
15. Mushrooms get their food from in the soil.
a).water b). animals c).humus
16. A has a definite shape and it is hard.
a). solid b). liquid c). gas
17. The smallest part of matter is called .
a).an atom b). a molecule c). an element
(j) A gas has no shape because its molecules .
can slide over each other
very close together
can move about freely [can move about freely]
18. The layer of air around the Earth is called .
a).biosphere b). atmosphere c).hemisphere
19. The atmosphere is km deep.
a).1000 b). 2000 c).3000
20. The way air presses down on all things is called .
a).water pressure b). mercury pressure c). air pressure
21. Warm air is cold air.
a). lighter than B).heavier than C).as heavy or as light as
22. The strongest wind that blows is called a .
a).breeze b). gale c). hurricane