Question

12S
(13) Mendeleev's Table did not consist of noble gases.
(14) Resistance as well as resistivity of a meterial are dependent on the temperature of that
meterial
(15) Prental sex determination is a criminal offence as per Indian law
(16) Organisms undergo variation and most variations survive resulting in high rate of servival
of those origanisms.​

Answer 1

Answer:

(13) true

(14)true

(15) true

(16) true

Explanation:

(13)Nobel gases were not discovered at the time when mendeleev formed his periodic table.

(14)The general rule is resistivity increases with increasing temperature in conductors and decreases with increasing temperature in insulators.

(15) prenatal sex determination is ban by Indian government so that female child foetisite do not occur.

hope it helps...