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In terrestrial plants, roots normally play a very important role in the absorption of nutrients and water from the soil. However, in aquatic plants, roots are much reduced in size. Some of these plants have narrow and thin ribbon-like leaves. These can bend in the flowing water. In some submerged plants, leaves are often highly divided.
Why are their leaves ribbon-shaped or divided ?
(a) The water can easily pass through these leaves without damaging them.
(b) They do not need to store water.
(c) They keep the plant afloat.
(d) They look pretty.

In terrestrial plants, roots normally play a very important role in the absorption of nutrients and water from the soil. However, in aquatic plants, roots are much reduced in size. Some of these plants have narrow and thin ribbon-like leaves. These can bend in the flowing water. In some submerged plants, leaves are often highly divided.
Why do aquatic plants have a root system which is not very well developed?
(a) So that they can be pulled out easily.
(b) It helps them float.
(c) Since they grow in water they don't need long roots to absorb water.
(d) They do not need to absorb minerals.

In the given flow chart,

Pick the incorrect match.
(i) ----- (ii) ----- (iii) ----- (iv)----- (v)
(a) Chemical ----- Physical ----- Chemical ----- Irreversible ----- Reversible
(b) Physical ----- Physical ----- Chemical ----- Chemical ----- Chemical
(c) Irreversible ----- Chemical ----- Physical ----- Reversible ----- Chemical
(d) Irreversible ----- Chemical ----- Chemical ----- Irreversible ----- Irreversible

Which of the following option best shows the front view of the given figure?

(a)
(b)
(c)
(d)

What happens when the North poles of two magnets are held near each other ?

(A) One jumps on to the other

(B) They repel each other

(C) They attract each other

(D) Nothing happens.

From which of the following maximum reflection of sound can take place?

(A) Gunny bags

(B) Metals

(C) Carpets

(A) Pour water into the bowl and remove W and X

(B) Pick out the green substance and pour water into the remaining mixture

(C) Pick out the green substance to get W, pour water into the bowl to get X, and heat the remaining solution to get Y

(D) Pick out the green substance, put the remaining mixture into a sieve to get Z, pour water over the remaining substances in the bowl to filter X, and heat the remaining solution to get Y.

(A) Sugar and water can be mixed

(B) The mass of a solution is equal to the sum of the masses mixed

(C) The mass of the solution is equal to the mass of the solute subtracted from the mass of the solvent

(D) The mass of a solution depends on the solvent, not on the solute.

(A) A glass of water fit for drinking

(B) Water in a pot

(C) Sea water

(D) Water with bacteria and chemicals.

(A) Anything that has temperature and takes up space

(B) Anything that has mass and occupy space

(C) Anything that has colour and takes up space

(D) Anything that can flow.