Answer:
The correct option is<u> B.adhesion</u>
Explanation:
A molecule of water is made up of a hydrogen atom and two oxygen atoms. The water is a polar molecule; hydrogen ions carrying a positive charge and oxygen atoms carrying negative charge. The negatively charged oxygen atom of one molecule will attract the positively charged hydrogen atom of another water molecule. Hence, developing the forces of adhesion or hydrogen bonds. This forces of adhesion pull the water upwards when water is lost by leaves through transpiration.
The first can be filled with an element and the second blank can be filled with a compound.
Iron is an element as it contains only one kind of atom, which combines with the oxygen from the air to produce rust, that is, iron oxide. The rust comprises two kinds of atoms, which signifies that it is a compound. A compound refers to a molecule that comprises at least two types of atoms. In the case, iron oxide is a compound as it comprises Fe and O atom.
The outer core is believed to behave most like a liquid.
The optimal pH for trypsin is 8. It is found in the small intestine and digests proteins and polypeptides there.
Hope this helps!
