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Q. 2. Fill in the blanks:
GOLDEN SCIENCE VIL
(a) The first step before growing crop is
(6) Tissues make up ......
Dudsoil.
(c) Sexual maturity is reached at
(d) Shooting stars are actually not .......
(e) The angle of .... ............. is equal to the angle of reflection.
The larva of a frog is called
(g) X and Y chromosomes are called
... chromosomes.
Q. 3. True and false:
(147=71
(a) Kerosene is not a fossil fuel.
(6) Sound cannot travel in vacuum.
(c) INSA is an artificial satellite.
(d) Chlorination is a commonly used chemical method for purifying water,
(e) PVC is used for making insulation of electric wires.
(6) Sodium is a very reactive metal.
(g) Poultry farms give us honey.
0. 4. Match the following:
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testing the ph,top,18in female.21in male,inscidence reflection
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