Question

In Hen i)___________fertilization takes place. A ii)_____________ develops around the embryo. It takes iii)____________ weeks to develop into a chick. i, ii and iii are:

1 point

a) External, hard shell, two

b) Internal, hard shell, three

c) External, layer, three

d) Internal, layer, three

Clear selection

16. The objects have streamlined body to minimize:

1 point

a. Rolling friction.

b. Sliding friction.

c. Static friction.

d. None of the above.

17. Which of the following statements is incorrect?

1 point

a. Friction acts on a ball rolling along the ground.

b. Friction acts on a boat moving on water.

c. Friction acts on a bicycle moving on a smooth road.

d. Friction does not act on a ball moving through air.

18. The nonmetals are used in i) Fertilizers ii) Water purification process iii) Making jwellery iv) Crackers

1 point

a) i, ii and iii

b) i, ii and iv

c) i, iii and iv

d) i, ii, iii and iv

19. On a moving body, the friction will always acts in ___________ direction.

1 point

a. Same

b. Opposite

c. Perpendicular

d. Any

20. Which of the following are irregular in shape?Amoeba, Paramecium, WBC, Nerve cell

1 point

a) Amoeba, Paramecium

b) Amoeba, WBC

c) Nerve cell, Paramecium

d) WBC, Nerve cell

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Answer 1

Answer:

Explanation:

• Internal, hard shell, three  is ur answer..
• Reducing friction
• option b
• option c
• option b
• option b

hope this helps u