1361. The percentage of oxygen in atmospheric air is approximately:
A.10 per ceny
B.21 per cent *
C.30 per cent
D.40 per cent
1362. The frozen continent around the South Pole is _______
1363. The “Roof of the world” is
D.the pamir plateau (Tibet) *
1364. Which of thr following countries is not land locked?
1365. North America is the third largest continent of the world. How much world population in percentage is accommodated by North America?
1366. Which of the following is not an example of exhaustible resources of the earth available to man?
1367. Which of the following is not an example of inexhaustible resources of the earth available to man?
B.fossil fuels *
C.forests and wildlife
1368. Which is the least populated continent of the world?
D.none of them
1369. Which of the following exhaustible and non-renewable fuels are inorganic in nature?
A.antarctica and bituminious coal
B.petroleum and natural gas
C.uranium and thorium *
D.lignite and peat
1370. Which of the following countries leads the world in the export of oil?
C.saudi arabia *