GATE Questions

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In biology, Homology is defined as any characteristic of biological organisms that is derived from a common ancestor. 

Hence, Homology is evidence of Common ancestry.

When two or more chemical species combine to form a single product, the reaction is said to be synthesis reaction. It is also called as Direct Combination reaction.

Here in the given options, Sodium (Na) combines with Chlorine (Cl) to form a more complex single product Sodium Chloride (NaCl).

Transfer payments are included in GDP and not in GDP.

The unit of energy in MKS system is Joule.

There are 9 common styles of leadership. They are:

Transformational leadership

Transactional leadership

Servant leadership

Autocratic leadership

Laissez-faire leadership

Democratic leadership

Bureaucratic leadership

Charismatic leadership.

When heated any substance, the molecules move apart from each other. Alike in the air the molecules move apart from each other. We know that the warm air is lighter than the cool air. Since after heating air gets warmer, it floats up and the cool air comes down to occupy the warm air place.

Wavelength of a wave can be measured with the distance between two nearest crest and crest or nearest troughs. It is measured as armstrong units.

I am History.

Yes, history refers to all the past, but we can create history in the presentand it cannot be polluted in the future.