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प्रश्न
Complete the statement given below by filling in the blank with the correct word from the words given below
The ______ is a layer which extends up to about 10-50 km. above the earth.
पर्याय
atmosphere
troposphere
stratosphere
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उत्तर
The stratosphere is a layer which extends upto about 10-50 kms. above the earth.
संबंधित प्रश्न
What do you observe when Calcium is heated and then tested with moist blue and red litmus – paper?
Fill in the blank :
________ is the most abundant inert gas present in air.
State three uses of water vapour in the air.
Statement given below is incorrect. Write the correct statement :
During thunder and lightning, nitrogen and oxygen combine to form nitrogen dioxide gas.
Whales come up to the water surface to breathe in oxygen.
The balance of oxygen in atmosphere is maintained through photosynthesis in animals and respiration in plants.
Write about the reaction of nitrogen with non metals.
Boojho took an empty plastic bottle, turned it upside down and dipped its open mouth into a bucket filled with water. He then tilted the bottle slightly and made the following observations.
- Bubbles of air came out from the bottle.
- Some water entered the bottle.
- Nitrogen gas came out in the form of bubbles and oxygen got dissolved in water.
- No bubbles formed, only water entered the bottle.
Which observations is/are correct?
The components of air which are harmful to living beings are ______.
Make sentences using the given set of words.
99%, oxygen, nitrogen, air, together
