Advertisements
Advertisements
प्रश्न
Fill in the blank space by choosing the correct word from the given list.
List: oxygen, carbonic, suIphurUioxide gas, precipitation, helium
_______ gas is used for filling weather observation balloons.
उत्तर
Helium gas is used for filling weather observation balloons.
APPEARS IN
संबंधित प्रश्न
Tick (√) the most appropriate answer.
The humans pollute the air by :
Complete and balance the following equation
CaO + H2O →
Name the following:
The product formed when phosphorus burns in oxygen.
What happens if the percentage of oxygen in the air reaches to 70%?
Whales come up to the water surface to breathe in oxygen.
Match the following
| 1. | Moving Air | Photosynthesis |
| 2. | Layer in which we live | Troposphere |
| 3. | Stratosphere | Wind |
| 4. | Oxygen | Ozone layer |
| 5. | carbon-di-oxide | Combustion |
How do the roots of land plants get oxygen for breathing?
Write about the reaction of nitrogen with non metals.
Usha took a lump of dry soil in a glass and added water to it till it was completely immersed. She observed bubbles coming out. The bubbles contain
Write just a few sentences for an imaginary situation if any of the following gases disappear from the atmosphere
nitrogen
