Which of the following elements would likely be a gas at rom temperature?
A. Argon (Ar)
B. Magnesium (Mg)
C. Copper (Cu)
D. 13
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Ответ:
A. Argon
Explanation:
it is a gas that makes up to 1% of the atmosphere
Ответ:
Salivation allows the ingestion of food while digestive juices aids breakdown of food and absorption of nutrients.
Explanation:
When food is taken into the mouth, the presence of food triggers a nervous reflex that causes the salivary gland to produce saliva in the mouth. Once the food particles have been ingested the digestive system breaks down the food into smaller components with the aid of the digestive juices.