Assertion (A): The water which gets collected under the surface of the land, known as underground water, remains in soil, sub-soil or bedrock.

Reason (R): The water from precipitation, that is from rain or snow flows on the surface.

1. Both A and R are true and R is the correct explanation of A.
2. Both A and R are true but R does not explain A.
3. A is true but R is false.
4. A is false but R is true.

Assertion (A): On the seventh or eighth day of every fortnight a neap tide, which is lower in height than a low tide, occurs.

Reason (R): The tide producing forces of the sun and the moon work in opposite direction causing a low tide.

1. Both A and R are true and R is the correct explanation of A.
2. Both A and R are true but R does not explain A.
3. A is true but R is false.
4. A is false but R is true.

Name the current that keeps the hub of world trade, the Port of Montreal, open all year round.

1. Gulf Stream
2. Labrador current
3. Canaries current
4. Florida current

Which currents have created one of the world's richest fishing grounds?

1. Labrador current and Gulf stream
2. Labrador current and Irminger current
3. Oyashio current and Kuroshio current
4. Both (a) and (c).