1906: Assertion (A) : Cellulose is used in making shatter proof glass.
Reason (R) : Polysaccharides are not soluble in water.
(a) Both A and R are individually true and R is the correct explanation of A
(b) Both A and R are individually true but R is not the correct explanation of A
(c) A is true but R is false
(d) A is false but R is true
1907: If the angles of a triangle are in the ratio of 4 : 3 : 2, then the triangle
(a) is obtuse
(b) has one angle greater than 80°
(c) is a right triangle
(d) is acute
1908: Which one of the following agricultural practices is eco-friendly ?
(a) Organic farming
(b) Shifting cultivation
(c) Cultivation of high-yielding varieties
(d) Growing plants in glass-houses
1909: Significantly higher level of urea in the blood is the indication of
(a) Liver damage
(b) Kidney damage
(c) Heart attack
(d) Spleen damage
1910: Consider the following statements regarding the earthquakes :
I. The intensity of earthquake is measured on Mercalli scale.
II. The magnitude of an earthquake is a measure of energy released.
III. Earthquake magnitudes are based on direct measurements of the amplitude of seismic waves.
IV. In the Richter scale, each whole number demonstrates a hundredfold increase in the amount of energy released.
Which of these statements are correct ?
(a) I, II and III
(b) II, III and IV
(c) I and IV
(d) I and III