Advertisements
Advertisements
प्रश्न
Match the following :
| Column A | Column B |
| (a) Global warming | 1. Hydrated ferric oxide |
| (b) Acid rain | 2. Manganese dioxide |
| (c) Rust | 3. Carbon dioxide |
| (d) Catalyst | 4. Methane |
| (e) Photosynthesis | 5. Nitrogen Dioxide |
Advertisements
उत्तर
| Column A | Column B |
| (a) Global warming | 4. Methane |
| (b) Acid rain | 5. Nitrogen Dioxide |
| (c) Rust | 1. Hydrated ferric oxide |
| (d) Catalyst | 2. Manganese dioxide |
| (e) Photosynthesis | 3. Carbon dioxide |
APPEARS IN
संबंधित प्रश्न
Mention the contribution of the following scientists :
- Antoine Lavoisier
- Robert Boyle
- Joseph Priestley
- Sir W. Ramsay
How is greenhouse effect produced?
Define rusting?
State what do you understand by the term ‘air’. Explain its importance to mankind.
State whether the following statement is ‘true’ or ‘false’. If false write the correct statement.
Air is a mixture and not a compound since the components of air cannot be separated by physical methods.
What will happen if the number of vehicles and factories in your surroundings increases?
Fill in the blank:
Nitrogen of the air is utilized by plants for formation of _____.
Complete the statement given below by filling in the blank with the correct word/s from the word/s given below
____________ is an example of a pollutant present in the air.
The process of conversion of iron into hydrated form of oxides is called _______.
A list of words is given in a box. Use appropriate words to fill up the blank in the following statement.
Air is a ______ of some gases.
