Stars and the Solar System — Science STD 8 — Question

Fires in underground coal mines usually occur due to the:

Ganga Action Plan is associated with.

The plants found in a particular area are termed as

The male hormone is called:

What is iron coated with in order to protect it from corrosion and rust?

Assertion (A) Young people get acne and pimples on the face at the time of puberty.
Reason (R) It is caused due to increased activity of adrenal gland.

Which of the following organisms reproduces asexually?

A person can hear an approaching train when he presses his ear to the railway track faster than one who simply stands on the tracks. What makes this possible?

The pressure which is exerted by air around us is known as:

Fill in the blanks left in the classification of the fossil fuels.