Test: Weather, Water and Air- 1
10 Questions MCQ Test Science for Class 4 | Test: Weather, Water and Air- 1
Frozen dew is called
Frozen dew is called hail stone.
The figure given below gives the following observation.
What process causes the dew present on the leaf to disappear by 10.00 a.m.?
The evaporation of dew causes it to disappear.
Which two of the gases given below make up more than 95% of air?
95% of the air constitutes of oxygen and nitrogen.
Why is the water cycle important to us?
The water cycle helps in recycling of water from the earth to the sky.
Wet clothes dry faster on a
Wet clothes dry fast on a sunny and windy day.
Which of the following causes wind to blow?
Due to the heat of the sun, warm air rises and cool air rushes in to take its place. This causes the wind to blow.
Which of these falls in different shapes?
If the clouds are very cold, water vapour condenses to form snowflakes of different shapes.
Condensed water vapour which can be seen on the ground after a very cold night is the
On very cold nights, the dew freezes to form ice. This is called frost.
On cold winter morning water vapour condenses on dust particles to form
On cold winter mornings water vapour condenses on dust particles to form fog.
The diagram given below shows a part of the water cycle.
What is the process taking place at the arrow labelled T?
T represents condensation.
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