Advertisements
Advertisements
Question
Tick (√) the most appropriate answer.
The humans pollute the air by :
Options
burning a vast amount of coal
burning waste materials
using petrol and diesel vehicles
all the above
Advertisements
Solution
all the above
APPEARS IN
RELATED QUESTIONS
What is air pollution ? What are the harmful effects of sulphur dioxide, nitrogen dioxide and hydrogen sulphide present in the air ?
Tick (√) the most appropriate answer.
Symbiotic bacteria is not present in the nodules of :
What happens when Carbon burns in oxygen ? Also give the balanced chemical equation for the reaction.
Give reason:
Mountaineers and divers carry oxygen cylinders with them.
Complete the statement given below by filling in the blank with the correct word from the words given:
The component of air used in photosynthesis is ______ and the products of photosynthesis is oxygen.
Compare the three main components of air i.e. nitrogen, oxygen and carbon dioxide with reference to their density and solubility, nature and reactivity.
The constituent of air that supports combustion is _____.
What was the old name of nitrogen?
______ is responsible for making clouds.
State whether the following statement is true or false. If false, correct them.
Plants produce oxygen during the process of making their own food.
