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ഇനിപ്പറയുന്നവയിൽ ഏതാണ് ഏറ്റവും സ്ഥിരതയുള്ള ആവാസവ്യവസ്ഥ?
Which of the following statements correctly describes the formation of hot deserts?
- Large hot deserts like the Sahara and Arabian deserts are found in the trade wind belt near sub-tropical high-pressure belts.
- These deserts are located under the ascending limb of the Hadley Cell, leading to increased condensation and precipitation.
- The descending limb of the Hadley Cell, which causes air to warm adiabatically and inhibits precipitation, is a key factor in their formation.
- Hot deserts are primarily formed due to extreme volcanic activity.
Which of the following processes are involved in the decomposition of organic matter?
- Leaching by water transfers soluble materials away from decomposing organic matter.
- Fragmentation by soil animals breaks large pieces of organic matter into smaller ones.
- Chemical alteration of dead organic matter is primarily a consequence of microbial activity.
- Photosynthesis is a primary process contributing to decomposition.
Regarding the Great Green Wall movement, identify the correct statements.
- The Great Green Wall movement was initiated to combat desertification.
- It is located in the Sahel region, south of the Sahara Desert.
- The movement was started in 2007.
- The Great Green Wall is a physical barrier made entirely of concrete.
Which of the following are direct consequences of the extraction of wood from forest areas?
- The opening of new roads through forest areas.
- Increased noise pollution within the forest.
- Reduced pressure on plant and animal resources.
- Improved habitat connectivity for wildlife.