Which of these needs both water and air?
Select the option which correctly fills the blank in the given sentence. X needs _____ to burn.
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On boiling, water changes to ___ .
Which of the following objects can be used to show that air fills space?
A blown-up football is heavier than a blown-out football because ____.
Which of the following persons is using water wisely?
The item shown in the given picture is made bouncy and light-weight by using ________.
I am needed for burning, I am present all around you. You call me as__________ .
What is WRONG about the activity shown in the given picture?
Which of these will pollute air around us?
What makes the blades of a windmill rotate?
In which of these is air NOT used?
Air moves in a particular direction. This helps us to ________ .
Doctor advised Jaya to eat healthy food. Which of these should she eat?
When we keep the water in the freezer then the water forms ____
28 videos|85 docs|54 tests
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28 videos|85 docs|54 tests
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