Everyday Science MCQs 2

In the context of alternative sources of energy, ethanol as a viable bio-fuel can be obtained from
(a) Potato
(b) Rice
(c) Sugarcane-✔️
(d) Wheat

In making the saffron spice, which one of the following parts of the plant is used?
(a) Leaf
(b) Petal
(c) Sepal
(d) Stigma-✔️

In higher pair, the relative motion is
(a) Purely turning
(b) Purely sliding
(c) Purely rotary
(d) Combination of sliding and turning-✔️

Electric current is measured by
(a) Voltmeter
(b) Anemometer
(c) Commutator
(d) Ammeter-✔️

Dim-vision in the evening and night results from the deficiency of which one of the following?
(a) Vitamin A-✔️
(b) Vitamin E
(c) Vitamin B12
(d) Vitamin C

Diffusion of light in the atmosphere takes place due to
(a) Carbon dioxide
(b) Dust particles-✔️
(c) Helium
(d) Water vapours

Dental caries are due to
(a) Viral infection
(b) Contaminated water
(c) Bacterial infection-✔️
(d) Hereditary causes

Consider the following statements:
1. Dinosaurs roamed the earth during the Mesozoic era.
2. All Dinosaurus and other reptiles such as Ichthyosaurus and Pterosaurus. became extinct due to unknown reasons in Triassic period.
Which of the statements above given is / are correct?
(a) 1 only-✔️
(b) 2 only
(c) Both 1 and 2
(d) Neither 1 nor 2

Consider the following statements:
1. Cigarette smoking exposes a person to benzene.
2. Benzene is known carcinogen.
Which of the statements given above is / are correct?
(a) 1 only
(b) 2 only
(c) Both 1 and 2-✔️
(d) Neither 1 nor 2

Consider the following statements:
1. Sweet orange plant is propagated by grafting technique.
2. Jasmine plant is propagated by layering technique.
Which of the statements given above is/are correct? [UPSC 2009(CS-P)1
(a) 1 only
(b) 2 only
(c) Both 1 and 2-✔️
(d) neither 1 nor 2