The answer is B for number 1 because rather than it being an observation it is something that you know for sure happened without guessing.
the answer is B the researcher is actually adding the fertilizer and measuring it.
Answer:
is this true/false? if so its true.
Explanation:
Answer:
Any two metal which are not ductile are iron and zinc ..
Answer:
True
Explanation:
The length of covalent bond depends upon the size of atoms and the bond order.