hydrosphere & oceanography section 5 MCQ Questions & Answers Detailed Explanation

Answer: (c)

El Nino (the Spanish name for the male child), initially referred to a weak, warm current appearing annually around Christmas time along the coast of Ecuador and Peru and lasting only a few weeks to a month or more.

Every three to seven years, an El Niño event may last for many months, having significant economic and atmospheric consequences worldwide.

Answer: (d)

Gaza strip lies along the coast of Mediterranean sea. The Gaza Strip is a selfgoverning entity on the eastern coast of the Mediterranean Sea that borders Egypt on the southwest and Israel on the east and north.

Answer: (a)

The equator subdivides it into the North Pacific Ocean and South Pacific Ocean, with two exceptions: the Galápagos and Gilbert Islands, while straddling the equator, are deemed wholly within the South Pacific.

The Mariana Trench in the western North Pacific is the deepest point in the world, reaching a depth of 10,911 metres (35,797 ft).

Answer: (c)

Answer: (b)

The percentage of fresh water that exists on earth is 3% out of which almost 70% in icecaps and glaciers. And the remaining 30% is the groundwater.

Lakes, rivers and swamps are approximately 10% of that 30% of groundwater.

Answer: (b)

Isohalines are lines that join points of equal Salinity.