Many times, you cannot eat hot food due to inflammation/ulceration in mouth.

Use your brain power Sometimes, you may notice a black powder or white discs floating on the pickle or murabba, when a jar is opened after a long time. What exactly is this? Why are such food items not good to eat?

Sometimes, you may notice a black powder or white discsfloating on the pickle or murabba, when a jar is opened after a long time. What exactly is this? Why are such food items not good to eat?

Many times, we experience dryness in mouth.

Use your brain power Many times, we experience dryness in mouth.

You must have read the news about many deaths due to poisonous liquor. Why does it happen?

The radius of a planet is 1/4 of earth’s radius and its acceleration due to gravity is double that of earth’s acceleration due to gravity. How many times will the escape velocity at the planet’s surface be as compared to its value on earth’s surface

Complete the following paragraph: (Words given: chemical reactions, upward, downward, burns, compressed, fuel) Launching of a rocket is based on Newton's laws of motion. When the ......... in the rocket is ignited, it ......... as a result of ......... and the ......... hot gases are thrown out with a tremendous force in the ......... direction, through a small opening in the tail of the rocket. At the same time, the escaping gases exert an equal (in magnitude) and opposite (in direction force of reaction on the rocket in the......... direction. As this force is greater than the net downward force (in magnitude) due to gravity and air resistance, the velocity of the rocket increases as it moves upward.