Biology multiple choice questions and answers.
Author: CSS MPT
Which waves are commonly produced by oscillating electric circuits?
(A) Microwaves
(B) Radio waves
(C) Infrared rays
(D) X-Rays
The answer is: (A) Microwaves
The elements in group 7A of the periodic table are known as
(A) alkanes
(B) alkenes
(C) alkali metals
(D) halogens
The answer is: (D) halogens
The elements in group 7A of the periodic table are known as halogens.
The maturity of a rock is a measure of its ________ in terms of hydrocarbon generation.
(A) density
(B) temperature
(C) state
(D) pressure
The answer is: (C) state
The maturity of a rock is a measure of its state in terms of hydrocarbon generation.
Molten rock below the surface of the Earth is called?
(A) Lava
(B) Magma
(C) Crystals
(D) Granite
The answer is: (B) Magma
When molten rock cools and solidifies, the ________ are formed.
(A) igneous rocks
(B) sedimentary rocks
(C) metamorphic rocks
(D) none of these
The answer is: (A) igneous rocks
The most abundant element of Earth’s Crust is
(A) Oxygen
(B) Nitrogen
(C) Aluminium
(D) Silicon
The answer is: (A) Oxygen
The most abundant element of Earth’s Crust is Oxygen (O), about 46.6%, including Oxygen in the waters on the Earth and atmosphere.
Oil rises in a wick of oil lamp because of a property of matter, is called _____.
(A) Condensation
(B) Capillary action
(C) Respiration
(D) None of these
The answer is: (B) Capillary action
Oil rises in a wick of oil lamp because of a property of matter, is called capillary action.
Which of the following is the shallowest sea in the world?
(A) The Weddell Sea
(B) The Sea of Azov
(C) The Black Sea
(D) None of these
The answer is: (B) The Sea of Azov
The Sea of Azov is rich in marine life because it is the shallowest sea in the world, with the depth varying between 0.9 and 14 metres.
The term “hydrosphere” refers to
(A) Zone of water
(B) Zone of Air
(C) Zone of Atmosphere
(D) Zone of earth crust
The answer is: (A) Zone of water
The watery part present on our planet is called hydrosphere.