<span>Its the studying the properties of currents, waves, tides and ocean circulation, plus the temperature, density and salt content of oceans.</span>
The correct answer is - Hydrosphere.
Life on Earth, emerged in the hydrosphere, at least from the findings and data so far. The reason for that was that the atmosphere and the lithosphere were still in a faze were they were not very hospitable for any living organisms to develop. The hydrosphere, or the water bodies, on the other side, were enabling conditions for life, not perfect or as we have today, but still reasonably good, so the life started developing into the water environment, and after the atmosphere and lithosphere changed over time, it spread on them as well.
Answer:
Education is a service sector and occurs as a tertiary economic activity.
Explanation:
- Economic activities are those that are performed by man for earning his living education being a part of the service sector is included in the tertiary sector as related to the teaching, development, and training of individuals. This sector contributes to the GDP of the nation and is an index for checking the countries literacy rate.
