Answer:
a.
And you can round 33.(3) to 33.
b.
and the final result is 25.
c.
And you can round 14.29 to 14.
Explanation:
First of all, you have to find how many times the growth rate would multiply to get closer to 100%. So if you multiply 3 times 33 you'll get 99. So, a population with an annual growth rate of 3% doubles roughly every 33 years.
This solution is just for annual growth rate that is one year long.
Answer:Valves stop blood flowing backwards
Explanation: Valve are flags of tissue that control the direction of the blood in our heart.,it prevent the backwards flow of blood. valves regulate blood from flowing back into the atria.The right and left atrio-ventricular valves prevent blood from flowing backwards into atria. When the ventricle is full,the valve prevent backwards flow of blood.
Line and scatter because it compares the increase decrease in a flow
When H+ concentration is lower than OH- concentration, the solution is basic or alkaline, and the pH of the solution is indicated with a number above 7
