Advertisements
Advertisements
प्रश्न
Burning of wood and coal causes ______ of air.
Advertisements
उत्तर
Burning of wood and coal causes pollution of air.
Explanation:
However, burning wood gives a lot of smoke, which is very harmful to human beings. It causes a respiratory problem. Also, trees provide us with useful substances that are lost when wood is used as fuel.
संबंधित प्रश्न
Which zone of a flame does a goldsmith use for melting gold and silver and why?
Fire produced by oil cannot be controlled by ______.
If a person’s clothes catches fire, the best way to extinguish the fire is to
Choose the correct statement about inflammable substances from the following.
They have
Choose the incorrect statement from the following.
Forest fires are usually due to
When the clothes of a person catch ______ the person is covered with a ______ to extinguish fire.
Some words (underlined) in the following sentence is jumbled up. Write them in their correct form.
Chittsmack does not burn by itself.
State whether the following statement is True or False.
Carbon dioxide is an excellent fire extinguisher.
What are the classes of fire?
Mention the conditions necessary for producing fire.
