7. true
8. false
9.being able to live in and out of water (i cannot think of another one, sorry)
10. genes (again, i do not know the other one)
11. not sure
12. not sure
i am so sorry this is all i could give you. other people please tell them the other answers
Answer:
<h2>2000 kg</h2>
Explanation:
The mass of the sailboat can be found by using the formula

f is the force
a is the acceleration
From the question we have

We have the final answer as
<h3>2000 kg</h3>
Hope this helps you
Answer:
the answer you have marked is correct.
C is correct.
Answer:
Ba has the largest atom size
The answer would be C. charge because the protons, which are positively charged particles, and the electrons, negatively charged particles, balance each other out and the atom becomes of a neutral charge (or no charge)