Advertisements
Advertisements
प्रश्न
Tick (√) the correct alternative from the choice given for the following statement.
Fuels which do not leave any residue on burning are
विकल्प
coal and wood
coal and LPG
wood and CNG
LPG and CNG
Advertisements
उत्तर
LPG and CNG
APPEARS IN
संबंधित प्रश्न
Write ‘True’ or ‘False’ in front of following statement.
Atmospheric nitrogen is directly absorbed by the plants to form plant proteins.
Discuss harmful effects of greenhouse effect.
How is air useful to water boats?
How is air useful to windmills?
Fill in the blank
Polluted air is harmful to ____.
Tick (√) the correct alternative from the choice given for the following statement.
Air consists of
Air has variable composition and hence there is ______ oxygen at lower altitudes than at higher altitudes.
What should be done if the clothes of a person catch fire accidentally? Why?
A list of words is given in a box. Use appropriate words to fill up the blank in the following statement.
The ______ makes the windmill rotate.
Paheli kept some water in a beaker for heating. She observed that tiny bubbles appeared before the water started to boil. She boiled the water for about 5 minutes and filled it in a bottle up to the brim and kept the bottle air tight till it cooled down to room temperature.
Do you think tiny bubbles will appear on heating the water taken out from the bottle? Justify your answer.
