Which of the following sustainable farming techniques involves planting different crops on a given plot of land every few years to help maintain soil fertility and reduce pest outbreaks? a. Terrace farming
b. Reduced tillage
c. Strip cropping
d. Crop rotation
e. Cover crops

the abdomen (less formally called the belly, stomach, tummy or midriff) constitutes the part of the body between the thorax (chest) and pelvis, in humans and in other vertebrates. the region occupied by the abdomen is termed the abdominal cavity. the stomach secretes acid and enzymes that digest food. ridges of muscle tissue called rugae line the stomach. the stomach muscles contract periodically, churning food to enhance digestion. the pyloric sphincter is a muscular valve that opens to allow food to pass from the stomach to the small intestine.

this is math not biology xd

answer///alimentary canal/gastrointestinal tract.digestive (gi);