Some times rainfall occurs when oppositely charged clouds meet due to

......... energy is released when oppositely charged ions get packed to form one mole of an ionic solid.

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. When excess of AgNO_3 is treated with KI 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. Smoke screens consist of

Point A and B are 90 km apart from each other on a highway. A car starts from A and another from B at the same time. If they go in the same direction they meet in 9 hours and if they go in opposite directions they meet in 9/7 hours. Find their speeds.

Lightning is caused due to discharge between similarly charged clouds .

Some time ago formation of polar stratospheric clouds reported over Antarctica. Why were these formed ? What happens when such clouds break up by warmth of sunlight ?

The chemical reactions that occur when paper is burnt are similar to some of the energy-yielding reactions that occur inside cells. How do the enzymes within cells make such reactions more suitable for living things?

The given figures graphically depicts the two wave shapes at different times propagating in opposite directions. Guess the figure when they meet at a place.