<span>The doubling time is the period of time
required for a quantity to double in size or value. It is applied to
population growth, inflation, resource extraction, consumption of goods,
compound interest, the volume of malignant tumours, and many other
things that tend to grow over time.</span>
Answer: 3• D 4• B (why does this require me to put 20 characters) anyway this is my guess
<span>The correct answer is The original height of the plant was 4 mm.</span>