FOOD TECHNOLOGY

FOOD WASTE REDUCTION AND SUSTAINABILITY

FOOD WASTE REDUCTION STRATEGIES

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Desertification usually occurs when
A
humans leave an area alone to undergo secondary succession
B
soil productivity decreases due to drought and poor farming practices
C
winds carry large amounts of sand from nearby deserts
D
irrigation water is continually used in arid regions of the country
Explanation: 

Detailed explanation-1: -The loss of fertile soil makes land less productive for agriculture, creates new deserts, pollutes waterways and can alter how water flows through the landscape, potentially making flooding more common.

Detailed explanation-2: -’Climatic variations’ and ‘Human activities’ can be regarded as the two main causes of desertification. removal of the natural vegetation coverby taking too much fuel wood, agricultural activities in the vulnerable ecosystems of arid and semi-arid areas, which are thus strained beyond their capacity.

Detailed explanation-3: -The low water holding capacity of the soil, migration of water and nutrient into the deeper layer and excess surface runoff are equally responsible for water stress condition. The long-term drought can cause desertification, degradation of land, and affect the soil ecosystem.

Detailed explanation-4: -Policies favoring sedentary farming over nomadic herding can contribute to desertification. The majority of dryland areas (65%) are rangelands that are more suited to sustainable grazing than crop production.

There is 1 question to complete.