Answer:
25%
Explanation:
One out of 4 boxes will have a large B, 25 x 4 = 100, thus your answer is 25%.
I'm not 100% sure, but I'd say the availability of vaccines and medicine.
He used a simple microscope
sludge
<span>Sewage treatment is also known as wastewater treatment. It is
a process whereby contaminant is removed from wastewater. Thus, chemical,
biological and physical process are commonly used to remove contaminants from
wastewater and the by-products of wastewater treatment is usually inform of
solid waste known as sewage sludge.</span>
The answer is a pedigree chart.
<span>Pedigree charts are used to explain the occurrence of
particular genes from one generation to the next. It gives enough information
about family disease history. They are used in families to find out the
probability of inheriting some disease. So, if Maria and Juanita are cousins
and the genotypes of other members of their family are known, the pedigree chart
could predict their genotypes. Still, it is not as precisely as DNA test.</span>