Question

Reason (R): Eclipses are formed due to the reflection of sunlight.
Q13) Salt is produced naturally from sea water. Sea water contains common salt mixed in it. When sea
water is allowed to stand is shallow pits, the water slowly turns into water vapour. In a few days, the
water completely vanishes leaving behind the solid salts. This salt is further purified and used for
domestic purpose.
a) Name the separation method used in this process.
b) Which type of mixture is separated by the above process?
c) Which source of energy helps in converting sea water into water vapour?
d) Name any two components which are seen in sea water.
Q14) The world around us provides different forms of energy. We cannot imagine a life without energy. The
Sun is the natural and biggest source of energy. An object having the capacity to do work also has
energy. Moving objects can do work, hence they have energy. We call this energy as the kinetic energy.
Electricity is the most convenient and widely used energy. The complete path through which electric
current flows is called an electric circuit. A simplest electric circuit has three parts: Cell or battery,
connecting wires and a switch. A load is also required through which the current is made to flow.
a) Define the term energy.
b) What is kinetic energy?
c) Which part of the electric circuit is the source of electric current?
d) Which electric component helps to start and stop the flow of current as and when required?
(4)
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Answer 1

Answer:

Sorry bro i could not answer . Sorry sorry sorry

Explanation:

Answer 2

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