The document discusses three major mountain ranges: the Andes formed by subduction at a continental margin, the Himalayas formed by a collision between continents in India and Eurasia, and mountains' role in Earth's system. Subduction at continental margins leads to uplift of the Andes, while collision between the Indian and Eurasian plates caused the rise of the Himalayas. Mountains impact Earth's climate and environment through effects like erosion and weathering.

1. MOUNTAINS
PREPAREDBY:SEDOM YOBERT

2. 9.4 THE ANDES: SUBDUCTION AT A
CONTINENTAL MARGIN

3. SUBDUCTION ZONE

4. 9.5 THE HIMALAYAS: A COLLISION
BETWEEN CONTINENTS

5. Formation of an Andean- Types
Margin

6. Continent- Continent Collision

7. The Himalayas Today

8. 9.6 MOUNTAINS AND EARTH
SYSTEM