Germs present in tap water can be killed by

By seeing such a photograph of India in newspaper and TV, we can predict dangers like cyclones and heavy rainfall. These photographs are taken by

Answer the question based on the following figure


Sea breeze blows during:

The fine droplets observed on the leaves of plants and grass on a winter morning are

Asma took two balloons. She has blown one balloon with her mouth. She filled another balloon with the vapours coming out of boiling water. When the balloons are released she observed that the balloon with the hot vapours raised to more height than the other balloon. What can she learn from this experiment?

Answer the question after studying the figure shown below

A student took two dishes and poured equal amount of water in them. He placed the Dish A in the sunlight and Dish B in a closed room. In which dish will the water evaporate faster?

The weather forecast in a week has been summarised as below. Answer the question based on the chart:

Which day shows the maximum change in temperature?

Two dishes containing water are kept in front of a fan, one dish closer and other farther. Water will be evaporated faster in

Water droplets that can be seen on grass in winter mornings is because of

Burning of fire needs