1250. A broad channel where the water of river and a sea mingle is called:

A.an estuary *
B.comets
C.a strait
D.a delta

1251. One of the country through which equator passes is?

A.brazil *
B.china
C.malta
D.pakistan

1252. The earthquake waves which have transverse movements are known as:

A.primary waves
B.secondary waves *
C.surface waves
D.none of these

1253. Through which one of the following countries the equator does not pass?

A.tanzenia *
B.kenya
C.zaire
D.uganda

1254. A line on a map joining places of equal monthly or yearly rainfall is:

A.isobar
B.isohyet *
C.isotherm
D.isoneph

1255. The deepest point of the ocean is:

A.mariana trench (challenger deep) *
B.galathea deep
C.bartholomew deep
D.mindano deep

1256. Which is the longest mountain range in the world?

A.himalyas
B.andes *
C.rockies
D.alps

1257. Which of the following is the world’s largest island?

A.borneo
B.sri lanka
C.new ginea
D.kalaalit numaat (greenland) *

1258. The origin of earth dates back to approximately ______ ?

A.3.6 billion years
B.4.6 billion years *
C.5.6 billion years
D.6.6 billion years

1259. The sun always rise in the East because:

A.it is located in East
B.the earth rotates from East to West
C.the earth rotates from West to East *
D.the earth revolves around the sun from West to East

1260. Spring tide occurs when the:

A.earth, moon and the sun are in a straight line *
B.sun, earth and the moon are at the right angles to each other
C.earth comes near the sun
D.earth is away from the sun