Tissues — Science STD 9 — Question

Of the following substance which is an element, a mixture and a compound?
Sea water is the example of:

Intercalated disc is present in:

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

Which of the following represents the solubility of sugar in water at 20°C?

1. 21g
2. 204g
3. 37g
4. 164g

As a wave travels into a medium in which its speed increases, its wavelength would ____.

Which of the following statements is incorrect?

The energy possessed by an oscillating pendulum of a clock is:

Aleuroplasts in a cell store:

1. Starch.
2. Oil.
3. Protein.
4. Nutrients.

Acne are caused by:

1. H₁N₁ virus.
2. Trypamosoma.
3. Staphylococcus.
4. Leishmania.

Air is:

1. Exhaustible resource.
2. Inexhaustible resource.
3. Perishable resource.
4. Both (b) and (c).

Minamata human disease is caused by pollution of water by:

1. Cadmium.
2. Lead.
3. Mercury.
4. Arsenic.