Riddle: I am blue and cover most of the Earth, but I am not the sky. What am I?

The oceans.

What role do oceans and continents play in shaping the Earth's climate?

Oceans and continents influence climate by regulating temperatures, weather patterns, and supporting diverse ecosystems.

Fill in the blank: The motto of the Indian Navy is "Sam noh Varunah," which translates to "Be auspicious to us, O ___."

Varuna

Multiple Choice: Which of the following colors represents land as seen from space? A) Blue B) Green C) Brown D) Yellow

C) Brown

Which continent has the most land in the Northern Hemisphere?

Asia

The Northern Hemisphere has more ___ compared to water, while the Southern Hemisphere has more ___ than land.

Land; water

Riddle: I am larger than a bay but smaller than an ocean, I am partially enclosed by land. What am I?

Gulf

In maps viewed from above the North Pole, what color typically represents oceans?

Blue

What causes seawater to be salty?

Seawater is salty because rivers and rain wash salt from the land into the oceans, where it accumulates over time.

Freshwater is primarily found in ___, ___, and ___.

Glaciers, rivers, and lakes.

True or False: The lines that divide the oceans on a map are natural boundaries.

False. The lines are man-made; in reality, the oceans are connected.

What is the term used for the plant life found in the ocean?

Marine flora, which includes algae and seaweeds.

Describe the difference between marine flora and marine fauna.

Marine flora refers to the plant life in the ocean, such as algae and seaweeds, while marine fauna refers to the animal life, including species like fish, dolphins, and whales.