Direction: The following item consist of two statements, Statement I and Statement II. Examine these two statements carefully and select the correct answer using the code given below.

Statement I: By far the most common topographic form in a Karst terrain is the sinkhole.
Statement II: Topographically, a sinkhole is depression that varies in depth from less than a meter to few hundred meters.

Direction: The following item consist of two statements, Statement I and Statement II. Examine these two statements carefully and select the correct answer using the code given below.

Statement I: Incised meanders are formed in the mature stage of a river.
Statement II: Incised meanders are characterized by rejuvenation and upliftment of land.

Direction: The following item consist of two statements, Statement I and Statement II. Examine these two statements carefully and select the correct answer using the code given below.

Statement I: Portions of glacial troughs may exhibit remarkably flat floors.
Statement II: The flat floor in a glacial trough is produced by uniform glacial erosion.

Direction: The following item consist of two statements, Statement I and Statement II. Examine these two statements carefully and select the correct answer using the code given below.

Statement I: In Tundra climate, biodiversity is comparatively less.
Statement II: Tundra climate has less reproductive warm period.

Direction: The following item consist of two statements, Statement I and Statement II. Examine these two statements carefully and select the correct answer using the code given below.

Statement I: Tides are the rise and fall of sea levels caused by the combined effects of the gravitational forces exerted by the Moon and the Sun and the rotation of the Earth.
Statement II: The Earth rotates from west to east.