Questions

Indian airline INDIGO gets India’s first A321Neo plane.

The Parliament cannot amend those provisions which form the ‘basic structure’ of the Constitution. This was ruled by the Supreme Court in the Kesavan and a Bharati Case. (1973)

Basic Structure of the Indian Constitution is not defined. But according to SC, the basic structure can be evolved but cannot be destroyed. Hence it falls within the constituent powers of the Parliament. Hence both 1 and 3 are correct.

Articulation is the proper term for a skeletal joint.

Covalent bonding occurs when pairs of electrons are shared by atoms. Atoms will covalently bond with other atoms in order to gain more stability, which is gained by forming a full electron shell. By sharing their outer most (valence) electrons, atoms can fill up their outer electron shell and gain stability.

Examples of compounds with covalent bonds ::

HCl, CO2, O2,... 

Atoms of the same element can have same atomic number and number of electrons since, the atomic number is the number of protons and the number of protons and eectrons are the same in an element.

Hence, the atoms of the same element may differ in their atomic mass since it depends on the number of neutrons it holds and such atoms are called isotopes.

Jim Corbett National Park is the 1st National Park of India and is a forested wildlife sanctuary in northern India’s Uttarakhand State. Rich in flora and fauna, it’s known for its Bengal tigers.