Tea and coffee are important crops because they are _____.(i) cash(ii) beverage(iii) plantation (iv) non-food
Question 8 Given below are statements about the harmful effects of weeds on crop plants. (i) They interfere in harvesting. (ii) They help crop plants to grow healthily. (iii) They compete with crop plants for water, nutrients, space and light. (iv) They affect plant growth. Choose the correct combination of statements. (a) i, iii, iv (b) iii only (c) iii, iv (d) i, ii, iii, iv
Match the following:
(i)Can have variable composition of constituent elements(A)Compound(ii) – – – is new substance formed due to reaction of two constituent elements(B)Mixture(iii)Constituent elements can be separated easily(C)Element(iv)Can be separated only by chemical or electrochemical reactions(v)Composition is always fixed(vi)Shows properties of constituent elements The correct pairs are:-