266: For which one of the following is capillarity not the only reason ?
(a) Blotting of ink
(b) Rising of underground water
(c) Spread of water drop on a cotton cloth
(d) Rising of water from the roots of a plant to its foliage
267: Which of the following is the chief characteristic of 'mixed farming'?
(a) Cultivation of both cash crops and food crops
(b) Cultivation of two or more crops in the same field
(c) Rearing of animals and cultivation of crops together
(d) None of the above
268: Monazite is an ore of
(a) zirconium
(b) thorium
(c) titanium
(d) iron
269: Which one of the following is printed on a commonly used fluorescent tubelight ?
(a) 220 k
(b) 273 k
(c) 6500 k
(d) 9000 k
270: What is the correct sequence of the rivers Godavari, Mahanadi, Narmada and Tapi in the descending order of their lengths?
(a) Godavari--Mahanadi--Narmada--Tapi
(b) Godavari--Narmada--Mahanadi--Tapi
(c) Narmada--Godavari--Tapi--Mahanadi
(d) Narmada--Tapi--Godavari--Mahandai