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The clouds consist of charged particles ...

The clouds consist of charged particles of water dispersed in air.Some of them are +vely charged, others are -vely charged.When +vely charged clouds come closer they cause lightening and thundering whereas when +ve and -ve charged colloids come closer they cause heavy rain by aggregration of minute particles.It is possible to cause artifical rain by throwing electrified sand or silver iodide from an aeroplane and thus coagulating the mist hangind in air.
Smoke screens consist of

A

fine particales of `TiO_(2)` dipersed in air by aeroplanes

B

fine particles of Agl dispersedin air by aeroplanes

C

find particles of `Al_(2)O_(3)` dispersed in air by aeroplanes

D

None of these

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The correct Answer is:
A
Smoke screen is cloud of smoke. It consists of fine particles of `TiO_(2)`
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Comprehension # 2 The clouds consist of charged particles of water dispersed in air. Some of them are +vely charged, others are -vely charged. When +vely charged clouds come closer they cause lightening and thundering whereas when +ve and -ve charged colloids come closer they cause heavy rain by aggregation of minute particles. It is possible to cause artificial rain by throwing electrified sand or silver iodide from an aeroplane and thus coagulating the mist hanging in air. Smoke screen is a cloud of smoke used to hide military, naval police etc. it consists of fine particles of TiO_(2) . When excess of AgNO_(3) is treated with Kl solution, Agl forms

The clouds consist of charged particles of water dispersed in air.Some of them are +vely charged, others are -vely charged.When +vely charged clouds come closer they cause lightening and thundering whereas when +ve and -ve charged colloids come closer they cause heavy rain by aggregration of minute particles.It is possible to cause artifical rain by throwing electrified sand or silver iodide from an aeroplane and thus coagulating the mist hangind in air. Agl helps in artificial rain because :

The clouds consist of charged particles of water dispersed in air.Some of them are +vely charged, others are -vely charged.When +vely charged clouds come closer they cause lightening and thundering whereas when +ve and -ve charged colloids come closer they cause heavy rain by aggregration of minute particles.It is possible to cause artifical rain by throwing electrified sand or silver iodide from an aeroplane and thus coagulating the mist hangind in air. When excess of AgNO_3 is treated with KI solution, Agl forms

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