2621: Due to their extensive rice cultivation, some regions may be contributing to global warming. To what possible reason/reasons is this attributable ?
1. The anaerobic conditions associated with rice cultivation cause the emission of methane.
2. When nitrogen based fertilizers are used, nitrous oxide, is emitted from the cultivated soil.
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
2622: It has been found recently that the acidity of the soil increases because of:
(a) Leaching away of bases
(b) Increased use of ammonia
(c) Increased use of urea
(d) Increased use of rock phosphate
2623: Which one of the following pairs is not correctly matched?
Monastery : State
(a) Dhankar Monastery : Himachal Pradesh
(b) Rumtek Monastery : Sikkim
(c) Tabo Monastery : Himachal Pradesh
(d) Kye Monastery : Arunachal Pradesh
2624: In a certain code, MARCH is written as OCTEJ, how is RETURN written in that code ?
(a) TFUVSM
(b) QGSTQM
(c) TGVWTP
(d) TGRVSO
2625: The average monthly income of a person in a certain family of 5 is Rs. 1000. What will be the monthly average income of a person in the same family if the income of one person increased by Rs. 12,000 per year ?
(a) Rs. 1200
(b) Rs. 1600
(c) Rs. 2000
(d) Rs. 3400