Read the given statement and select the correct option. Statement 1: Tropical rainforests are disappearing fastly from developing countries such as India. Statement 2 : No value is attached to these forests because these are poor in biodiversity. (a) Both statement 1 and 2 are correct (b) Statement 1 is correct but statement 2 is incorrect (c) Statement 1 is incorrect but statement 2 is correct (d) Both statement 1 and 2 are incorrect.

Read the given statement and select the correct option. Statement 1: Indian elephants (Elephan maximums) are confined to terai and the foothills. Statement 2: Elephants are herbivores and require succulent grass and plenty of water. (a) Both statement 1 and 2 are correct (b) Statement 1 is correct but statement 2 is incorrect (c) Statement 1 is incorrect but statement 2 is correct. (d) Both statement 1 and 2 are incorrect.

Read the given statements and select the correct option Statement 1 : In insertional inactivation, blue colour produced by bacterial colonies indicates that the plasmid does not have an insert into the bacterial genome. Statement 2: Presence of insert results into insertional inactivation of beta -galactosidase enzyme and the colonies do not produce any colour. A) Both statements 1 and 2 are correct B) statement 1 is correct but statement 2 is incorrect C) statement 1 is incorrect but statement 2 is correct D) Both statements 1 and 2 are incorrect

Read the given statements and select the correct option. Statement 1: Major reservoirs of phosphorus are phosphate rocks and fossil bone deposits laid down in the past geological ages. Statement 2: During weathring of rocks, minute amounts of these phosphates dissolve in soil solution and are absorbed by the roots of the plants. A. Both statements 1 and 2 are correct. B. Statement 1 is correct but statement 2 is incorrect. C. Statement 1 is incorrect but statement 2 is correct. D. Both statement 1 and 2 are incorrect.

Find the scalar product of the following pairs of vectors and the angle between them. a = (2, -2, 1) and b = (0, 2, 4)

(i) Give the structures and IUPAC names of monohydric phenols of molecular formula C_(7)H_(8)O . (ii) How will you synthesise ? (a) 1-phenyl ethanol from a suitable alkene. (b) Cyclohexyl methanol using an alkyl halide by an S_(N)2 mechanism.

In the given figure of maize grain certain regions are labelled as A,B,C and D.Match them with the codes (1,2,3 and 4) given below and select the correct option (1)The main nutritive tissue ltbr (2) Shield shaped cotyledon (3)Protection sheath of radicle (4) The proteinaceous layer

Find the acute angle between the lines through the points A(-3, -1, 0) B(2, -3,1) and the through C(1,2,3), D(-1,4,2).

Find the length of perpendiculars drawn from the origin on the side of the triangle whose vertices are A(2,1),B(3,2) and C(-1,-1).

If l_1,m_1,n_1andl_2,m_2,n_2 are the direction cosines of two mutually perpendicular lines show that the d.cs. Of the line perpendicular to both of them are m_1n_2-n_1m_2,n_1l_2-l_1n_2,l_1m_2-m_1l_2