Water vapor condenses into small water droplets in the sky at sky at low temperatures, these droplets stick together to form clouds through the process called condensation(a). The water in these clouds then fall on Earth under gravity in the form of rain, snow or hail, the process of which is called precipitation(b).

Answer: Option B. ->

Objects which are denser than water sink. The mug and balls given here are made of plastic and are less dense than water. Hence, they float.

Of the given options, lake is the odd one out. The water in lakes do not flow anywhere i.e the water usually stays in one place. Lakes are also surrounded by land on all four sides with no exit for water to flow.

Rainwater harvesting can be carried out anywhere it rains. Special collection tanks and surface runoff techniques are used for this purpose.

• The architecture of Gadsisar lake was simply magnificent with the carved verandahs and halls.


• People worshipped the lake.


• Once this lake filled up with rainwater, the excess water used to flow to the nine smaller lakes and filled them up.