NA
Amit Rastogi Environmental Studies Solutions for Exercise - NA
Simple step-by-step solutions to NA questions of Air and Water from ThinkTrail CURIOSITY CHRONICLES A Coursebook for Science Grade 5. Also get 3D topic explainers, cheat sheets, and unlimited doubts solving on EMBIBE.
Questions from NA with Hints & Solutions
You must have seen on the festival Lohri, people fan the flames. Why do they do so?
How do hand-pumps work?
How do doctors fill medicines into syringes?
How could you tell that air has weight?
Nitrogen, oxygen and argon are among the primary gases found in the air. Each of these gases is used extensively in industries and medical field, and in some products used in homes. Oxygen is valued for its support in biological processes and combustion in many industries. Nitrogen is used in food storage to keep packaged or bulk foods fresh, in the manufacturing of electronic parts and for industrial purposes. Argon is used in industrial processes such as producing high quality stainless steels and forming impurity-free silicon crystals for semi-conductor manufacture.
How can we reduce air pollution?
Nitrogen, oxygen and argon are among the primary gases found in the air. Each of these gases is used extensively in industries and medical field, and in some products used in homes. Oxygen is valued for its support in biological processes and combustion in many industries. Nitrogen is used in food storage to keep packaged or bulk foods fresh, in the manufacturing of electronic parts and for industrial purposes. Argon is used in industrial processes such as producing high quality stainless steels and forming impurity-free silicon crystals for semi-conductor manufacture.
What will happen if due to our selfish acts, some changes occur in the composition of the air?
Name the gas that is essential for all living beings to live.
The amount of water vapour present in the air at a given time is called?
