first one is definitely a fact
Answer: B)The continents were once connected.
Explanation:
There was probably some kind of earth quake or drift in the plains/plates causing the land to break into pieces and separate
D. taxonomy
tax = order, classify
nom = name
Answer:
functional groups
Explanation:
Functional groups are molecules with specific atoms and have their own chemical properties when attached to some other substances. Glucose is a simple sugar and has an aldehyde group (CHO) as its functional group. The presence of CHO in it makes it be present in food without any harmful impacts. On the other hand, hexanoic acid has COOH (carboxylic group) as its functional group. COOH group has a tendency to donate its protons and become ionized. It is toxic as it is reactive and tends to affect the pH of the food or solution in which it is present.
