GEOLOGY

EARTH SCIENCE

CLIMATE AND ENVIRONMENTAL CHANGE

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Severe flooding causes a variety of problems. Check all that apply:
A
crop loss for farmers
B
an increase in soil pathogens
C
loss of beneficial root fungi
D
much longer soil recovery time before new crops can be planted
Explanation: 

Detailed explanation-1: -Loss of human life. Property and infrastructure damage. Road closures, erosion, and landslide risks. Crop destruction and livestock loss.

Detailed explanation-2: -Flooding also reduces the soil redox potential, increases the pH of acid soils (largely because of a change of Fe3+ to Fe2+), and decreases the pH of alkaline soil (mainly because of CO2 accumulation which eventually forms H2CO3).

Detailed explanation-3: -Heavy rainfall. Deforestation. Improper drainage system.

Detailed explanation-4: -Massive Rainfall. Drainage systems and the effective infrastructure design aid during heavy rains. Overflowing of the Rivers. Collapsed Dams. Snowmelt. Deforestation. Climate change. Emission of Greenhouse Gases. Other Factors.

There is 1 question to complete.