Improvement in Food Resources — Science STD 9 — Question

Filtration as a method of separation can be used for:

Which of the following is micronutrient?

Mass number is denoted by:

In Rutherford's alpha-ray scattering experiment, a screen is used to detect the alpha particles which is coated by:

Intercalated disc is present in:

1. Striated muscle.
2. Smooth muscle.
3. Cardiac muscle.
4. Both b and c.

A mixture of milk and ground oil can be separated by:

1. Sublimation.
2. Evaporation.
3. Separating funnel.
4. Filtration.

Which of the following statement is correct about fertilizer?

1. It is nutrient specific.
2. It is water insoluble.
3. It is readily absorbed by the plant.
4. It is compact and easy to transfer.

The ultrasound waves can penetrate into matter to a large extent because they have:

1. Very high speed.
2. Very high frequency.
3. Very high wavelength.
4. Very high amplitude.

Alikunhi is famous for development of the technique of:

1. Hypophysation
2. Composite fish culture.
3. Mariculture
4. Shell culture.

_________ deduced that all kind of matter are made up of "anu".