Inert
That means it does not react with other atoms
Answer:
Pylorus
Explanation:
The stomach is a J-shaped organ which is a part of the digestive system. The digestive system on one end is attached to the oesophagus and on the end to the small intestine.
The pylorus structure of the stomach is composed of thick muscles which help to mix or agitating the food in the stomach and controls the movement of the food to the duodenum which is the first part of the small intestine. The movement is controlled by the ring of muscles in the pylorus called pyloric sphincter.
Thus, Pylorus is the correct answer.
seismic (s) waves are an elastic wave in the earth produced by an earth quake or other means
The correct option is B.
Leather shoes are made form leather, which is a natural polymer. Leather is usually obtained by tanning the hides of animals, especially cattle. Natural polymers refer to those polymers that are obtained naturally from nature. Examples are wool, silk, leather, keratin, etc. Synthetic polymers on the other hand are man made, they are produced by combination of chemical substances in the industries. Examples are plastics, polyethylene, nylon, etc.