English Medium इयत्ता ९ - CBSE Question Bank Solutions for Science

Why step farming is common in hills?

Explain the role of the Sun in the formation of soil.

Carbon dioxide is necessary for plants. Why do we consider it a pollutant?

Poultry farming is undertaken to raise the following

1. Egg production
2. Feather production
3. Chicken meat
4. Milk production

Poultry fowl are susceptible to the following pathogens

Causal organism of any disease is called as ______.

Differentiate between the following

Beekeeping and Poultry farming

Suggest some preventive measures for the diseases of poultry birds

State which of the following situation is possible and give an example:

An object moving with an acceleration but with uniform speed.

State which of the following situation is possible and give an example:

An object moving in a certain direction with an acceleration in the perpendicular direction.

How will you separate a mixture containing kerosene and petrol (difference in their boiling points is more than 25°C), which are miscible with each other?

How would you confirm that a colourless liquid given to you is pure water?

Write down the formulae of sodium oxide.

Write down the formula of aluminium chloride.

Write down the formulae of sodium sulphide.

Write down the formulae of magnesium hydroxide.

What is meant by the term chemical formula?

Write the chemical formula of the Magnesium chloride.

Write the chemical formula of the Calcium oxide.

Write the chemical formula of the Copper nitrate.