The important function of _____ is to make food:
A. Leaves
B. Seeds
C. Flowers
D. Roots
Correct Answer: A. Leaves
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Which of the following is/are the example/s of non-flowering plants?
A. Moss, Fern
B. Pine, Juniper
C. Thuja, Sago palm
D. All of these
Correct Answer: D. All of these
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The exchange of oxygen between blood and air takes place in the _______?
B. Lungs
C. Heart
D. All of these
Correct Answer: B. Lungs
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What is the largest delta in the world?
A. Ganges Delta
B. Mississippi Delta
C. Amazon Delta
D. Niger Delta
Correct Answer: A. Ganges Delta
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The soul of chemistry is its dealing with
A. Internal structural changes in matter
B. Composition of matter
C. Properties of matter
D. Composition and properties of matter
Correct Answer: D. Composition and properties of matter
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All of the following statements are incorrect for 20 mol of hydrogen peroxide except
A. it has 20 mol of hydrogen atoms
B. it has 30 mol of oxygen atoms
C. it has 80 mol of atoms
D. 30 mol of hydrogen atoms
Correct Answer: C. it has 80 mol of atoms
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If proton number of two atoms is same then it can be concluded that
A. they are isotopes
B. compounds of both with CI2 will be similar in reactivity towards other
compounds
C. both have same colors
D. both have same melting points
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