Question

Physical, chemical and biological factors affecting the living organisms in any

possible way is collectively called as ----------------.

(a) Environment

(b) Ecosystem

(c) Food chain

(d) All of these

(2)

In a hydroelectric power plant,

(a) potential energy possessed by stored water is converted into electricity.

(b) kinetic energy possessed by water is converted into potential energy.

(c ) fuel is burned in presence of water to produce electricity.

(d) water is converted into steam to produce electricity.

(3)

Which of the following animals can regenerate it's broken body part?*

(a) Cockroach (b) Frog (c) Sparrow (d) Star fish

(4)

What type of stress is reduced by laughing loudly?

(a) Physical stress (b) Mental stress (c) financial stress (d) None of

these

(5)

Mock drill is arranged on disaster of fire in various schools by the ________.

(a) government (b) fire fighters

(c) teachers (d) school principal

(B)

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Answer 1

Answer:

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itna bada question????!!!!

Answer 2

Answer:

Give a test that can be used to confirm the presence of carbon in a compound.

With a valency of 4, how is carbon able to attain noble gas configuration in its

compounds?

Explanation:

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