Answer: Option E, in 12 years.
Explanation:
A geometric growth model is characterized by its finite growth rate, known as lambda. The size of the population after a unit of time has passed can be calculated using the last known size and lamba as:

Starting from the initial value of population, the next one will be calculated multiplying by 1.4, and the next one multiplying again by 1.4, thus we can define a function that relates the time passed in year to the size of the population:

Substituting our values we get the function that defines the growth of our poupulation:

Then, we just have to clear the t that gives a population of 500:

Thus, at 12 years, the population will be greater than 500.
Solid water is less dense than liquid causing it to float while other substances are mainly more dense as solids.
Answer:
Frequency of heterozygous animals with agouti fur is
%
Explanation:
As per the Hardy Weinberg's equation -
represents the frequency of population with phenotype expressed by homozygous recessive genotype
represents the frequency of population with phenotype expressed by homozygous dominant genotype
and
represents the frequency of population with phenotype expressed by homozygous recessive genotype
Given -

As per first principle of Hardy Weinberg's equilibrium

Substituting the value of q in above equation, we get -

As per second principle of Hardy Weinberg's equilibrium

Substituting the given values in above equation, we get -

Frequency of heterozygous animals with agouti fur is
%
Answer: atmospheric, carbon dioxide
Global climatic change is directly linked with the changes in the atmospheric conditions, this is because of increase in the carbon dioxide levels in the atmosphere. Atmosphere is the distinct layer of gases in the planet earth. Atmosphere regulates climatic change in a region. Carbon dioxide is a hot and harmful gas affects the quality of respirable air, and increasing the temperature of global climate.