How does prolonged soil erosion contribute to desertification in affected areas?

By increasing the fertility of the soil

By reducing the salinity levels of the soil

By making the land more suitable for agricultural purposes

By gradually rendering the land unusable for vegetation

What effect does the accumulation of salts in the soil have on crop growth in areas affected by salinisation?

It enhances the growth of crops due to increased mineral content

It makes the soil more fertile for a wider variety of crops

It renders the soil toxic to crops

It increases the water retention capacity of the soil

How do human activities exacerbate the natural process of soil erosion?

By promoting sustainable farming practices

By implementing effective irrigation systems

By leaving the soil vulnerable to erosive effects of wind and water

By planting diverse vegetation to stabilize the soil

What environmental issue arises as a consequence of salinisation in semi-arid regions?

Increased biodiversity due to unique ecological niches

Decreased greenhouse gas emissions from the affected areas

Loss of arable land for agricultural purposes

Enhanced soil fertility leading to higher crop yields

What role does intense evaporation play in the process of salinisation in semi-arid regions?

It helps to replenish groundwater reserves

It facilitates the removal of excess salts from the soil

It causes groundwater to rise to the surface, leaving behind salts

It promotes the growth of salt-tolerant crops

What is a key aspect of sustainable management concerning soil erosion and desertification?

Implementing short-term fixes only

Ignoring political and social measures

Focusing solely on technological solutions

How does agroforestry contribute to mitigating desertification and soil erosion?

Provides organic matter and nutrients to enrich the soil

How do contour stones and terraces help minimize soil erosion?

Prevent soil erosion caused by wind or water runoff

Accelerate decomposition of organic matter

What role does education play in combating desertification and soil erosion?

Encouraging unsustainable farming techniques

Teaching sustainable farming techniques and promoting family planning

Disregarding environmental awareness

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