4171: The growth of seedling plants after transplantation will not always be proper because:
(a) New soil may not contain the required minerals
(b) During transplantation root hairs get damaged
(c) Roots cannot penetrate deep into the soil
(d) Of all factors stated above
4172: At what temperature are the readings of a Centigrade and Fahrenheit thermometer the same?
(a) -40
(b) 212
(c) 40
(d) 100
4173: Azolla gives a good biofertilizer when mixed with:
(a) Blue-green algae
(b) Cow dung
(c) Bone-meal
(d) Urea
4174: Consider the following statements:
1. In the world, the tropical deserts occur along the western margins of continents within the trade wind belt.
2. In India, the East Himalayan region gets high rainfall from north-east winds.
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
4175: What was the main reason for a great civil strife in Argentina recently?
(a) Ethnic conflict between the native Red Indian tribes and others
(b) Economic crisis due to huge public debt
(c) The issue of using native languages as medium of instruction in schools
(d) Clashes between government troops and secessionist groups