2081: In high mountain regions bleeding through nose occurs because:
(a) The pressure of the blood capillaries is higher than the outside pressure
(b) The pressure at high altitudes is greater than that in the plains
(c) The blood pressure increases at high altitudes
(d) The blood pressure decreases at high altitudes
2082: The capital of India was shifted from Calcutta to Delhi in the year:
(a) 1905
(b) 1911
(c) 1912
(d) 1916
2083: Metastasis is the process by which
(a) cells divide rapidly under the influence of drugs
(b) cancer cells spread through the blood or lymphatic system to other sites or organs
(c) the chromosomes in cell nuclei are attached to the spindle before moving to the anaphase poles
(d) cancer cells are successfully inhibited to divide any further
2084: Which one of the following diseases is caused due to defective genes?
(a) Ulcer
(b) Haemophilia
(c) Diabetes
(d) Cancer
2085: In the context of proposals to the use of hydrogen-enriched CNG (H-CNG) as fuel for buses in public transport, consider the following statements:
1. The main advantage of the use of H-CNG is the elimination of carbon monoxide emissions.
2. H-CNG as fuel reduces carbon dioxide and hydrocarbon emissions.
3. Hydrogen up to one-fifth by volume can be blended with CNG as fuel for buses.
4. H-CNG makes the fuel less expensive than CNG.
Which of the statements given above is/are correct?
(a) 1 only
(b) 2 and 3 only
(c) 4 only
(d) 1, 2, 3 and 4