Advertisements
Advertisements
प्रश्न
Statement given below is incorrect. Write the correct statement :
Carbon dioxide gas allows the earth to radiate out heat rapidly.
उत्तर
Carbon dioxide gas does not allow the earth to radiate out heat rapidly.
APPEARS IN
संबंधित प्रश्न
What is air pollution ? What are the harmful effects of sulphur dioxide, nitrogen dioxide and hydrogen sulphide present in the air ?
Statement given below is incorrect. Write the correct statement :
Helium gas at low pressure is used for filling electric bulbs.
Tick (√ ) the most appropriate answer.
Magnesium burns with a dazzling white flame to form magnesium oxide, a powdery mass. The colour of magnesium oxide is :
What are the main components of air?
Define the following:
Combustion.
Give the chemical name of rust.
Complete the statement given below by filling in the blank with the correct word from the words given
___________is an example of a pollutant present in the air.
What is the source of oxygen gas in air?
The air in coastal areas have more oxygen.
Match the following
| 1. | Nitrogen | a. | Acid rain |
| 2. | CO2 | b. | Global warming |
| 3. | Melting of glaciers | c. | Volcanic gases |
| 4. | Corrosion of bridges | d. | Aerated drinks |
