Advertisements
Advertisements
प्रश्न
Define the term Global warming.
Advertisements
उत्तर
Global warming : An increase in the percentage of carbon dioxide, methane, nitrous oxide and chlorofluorocarbon traps the heat causing the temperature of the earth and its surroundings to rise. This is known as global warming.
APPEARS IN
संबंधित प्रश्न
Classify Calcium oxide. Also give a balanced equation to prepare it.
Statement given below is incorrect. Write the correct statement :
Potassium nitrate on strong heating decomposes into potassium nitrite and nitrogen gas.
Give reason:
A burning candle stops burning if covered with a glass tumbler
Fill in the blanks
Plants and animals maintain the balance of carbon ___________and _________ in the air.
Give word equation for the following conversion:
Nitric acid to soluble nitrates in the soil
Tabulate the various components of air, including the components with variable composition.
Compare respiration and combustion-both involving oxygen of the air.
The amount of water vapour in the air is more in windy places than in other areas.
State whether the following statement is true or false. If false, correct them.
Plants consume oxygen for respiration.
Observe the picture given in Fig. carefully and answer the following questions.
Can you comment on the air quality of the place shown in Fig?
