Q. Give reason.(a) doing physical work our muscles cramps,
(b) During water logging and item land
plants die
Answers
A: Exercise-associated muscle cramps (EAMC) are defined as cramping (painful muscle spasms) during or immediately following exercise.[1][2][3] Muscle cramps during exercise are very common, even in elite athletes. EAMC are a common condition that occurs during or after exercise, often during endurance events such as a triathlon or marathon.[1][3] Although EAMC are extremely common among athletes, the cause is still not fully understood because muscle cramping can occur as a result of many underlying conditions. Elite athletes experience cramping due to paces at higher intensities.[2][3] The cause of exercise-associated musc
le cramps is hypothesized to be due to altered neuromuscular control, dehydration, or electrolyte depletion.[1][2][3].
B:Waterlogging occurs whenever the soil is so wet that there is insufficient oxygen in the pore space for plant roots to be able to adequately respire. Other gases detrimental to root growth, such as carbon dioxide and ethylene, also accumulate in the root zone and affect the plants.
Plants differ in their demand for oxygen. There is no universal level of soil oxygen that can identify waterlogged conditions for all plants. In addition, a plant’s demand for oxygen in its root zone will vary with its stage of growth.