Answer:
air pressure can be measured I Barometer
humidity is hygrometer
The purpose of saliva serves in digestion is to breaks down complex carbohydrates. The correct option is (A).
<h3>What is saliva?</h3>
Saliva is a transparent liquid secreted by glands present in the mouth. Saliva is an important secretion for the digestion of food in the mouth.
It is made up of water and many digestive enzymes are present in the saliva, which help in digestion of complex carbohydrate like starch.
Thus, the correct option is A) breaks down complex carbohydrates.
Learn more about saliva
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<span>The placenta remains intact is not true about stage 3 of the birthing process. It is already delivered as part of stage 3. </span>
The Earth's Mass is what directly influences its gravitational pull. The gravity produced by the earths mass keeps people grounded on earth and the moon in orbital rotation by pulling to the center of mass, the Earth's core.