Definition of gravity.

(b) a gift of nature which is very useful to mankind

Dictionary: A person actively engaged in politics, esp a full-time professional member of a deliberative assembly. Politician can mean someone who identifies with a major political party. A politician is a person who campaigns...

Answer is (c) A change in pressure of the water bodies

(i) Characteristics used for hierarchical classification of living organism’s are-  (a) Their cellularity, whether unicellular or multicellular  (b) The mode of nutrition  (c) The mode of reproduction  (ii) Characteristics mean features or qualities of...

(a) Movement of water molecules from a region of higher concentration to a region of lower concentration through a semipermeable membrane

Cation- It is the positively charged ion, e.g., Na+ which is attracted towards cathode (negative electrode) in an electric field.  Anion – It is the negatively charged ion, e.g., Cl- which...

(i) Parallel lines : Two straight lines which have no point in common are said to be parallel to each other. ‘Point’ and ‘straight line’ will have to be defined...

Planning is a psychological process of ‘thinking and deciding in advance’ about ‘what is to be done’ and ‘how it is to be done’. It is a mental activity, in...

(b) Average weather pattern of many years.