Solution:
The above statement is true.Despite being underground, roots contain live cells that need oxygen for respiration and energy production. They absorb the oxygen in the gaps between soil granules. However, in soils saturated with water, oxygen is forced into the atmosphere as water fills the spaces between soil particles. As a result, roots are reduced by oxygen, which has an impact on plant and root growth. Oxygen from the pore spaces moves into the environment. So, in waterlogged soil the plant does not grow well as the plant does not get sufficient oxygen for roots.