Hydrosphere — Flashcards
Telangana Board · Class 9 · Social Studies
20 flashcards for Hydrosphere (Telangana Board Class 9 Social Studies) to test yourself on key terms and facts.
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What is the hydrological cycle and what is its equation?
Answer
The hydrological cycle is the circulation of water in different forms (liquid, solid, gaseous) between oceans, atmosphere, land surface, and living organisms. The equation is RF = RO + ET, where RF (R…
What are the six stages of the water cycle?
Answer
The six stages are: 1) Evaporation - water changes from liquid to gas, 2) Transportation - movement of water vapor through atmosphere, 3) Condensation - water vapor forms droplets and clouds, 4) Preci…
Evaporation
Answer
The process by which water changes from liquid to gas due to the Sun's heat. Water from land, lakes, rivers, and oceans evaporates into water vapor. Plants also lose water through transpiration.
What percentage of Earth's water is fresh water and where is most of it found?
Answer
Only 2.78% of Earth's water is fresh water. Most fresh water (69.56%) is frozen in ice caps, glaciers, and permanent snow in Antarctica, Arctic, and mountains. 30.1% exists as groundwater, and only 0.
Name the five oceans of the world in order of size.
Answer
From largest to smallest: 1) Pacific Ocean (separates Asia/Oceania from Americas), 2) Atlantic Ocean (separates Americas from Europe/Africa), 3) Indian Ocean (washes Southern Asia, separates Africa an…
What is the Continental Shelf and why is it important?
Answer
The Continental Shelf extends to 200 meters depth and covers 7.6% of ocean area. It's the border zone between land and sea. Important because: 1) Rich in fish wealth, 2) Contains crude oil and natural…
Compare Continental Shelf and Continental Slope.
Answer
Continental Shelf: 0-200m depth, 7.6% of ocean area, border between land and sea, rich in resources. Continental Slope: 200-3000m depth, 15% of ocean area, complex relief with submarine canyons, marks…
What are the deepest ocean trenches in each ocean?
Answer
Pacific Ocean: Challenger/Mariana Trench (11,022 m deep), Atlantic Ocean: Puerto Rico/Naves Trench (10,475 m deep), Indian Ocean: Java Trench (7,450 m deep). These are narrow trenches that plunge to g…
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