Answer:
c. Evolution
Explanation:
Antibiotics are drugs that fight infections by destroying specific parts of the bacteria that cause them. To survive the attack, some bacteria evolve, adapt and create resistance to medication. Then, this practically immune bacteria to the medicine can spread its "superpower" to the descendants. This is why taking antibiotics without a doctor's request is so dangerous to your health and that of the general population.
Cut back on both air and water pollution so their habitat does not melt
Answer is A. A population becomes separated by environmental factors into two groups that do not reproduce with one another.
When a population of a species become geographically separated then gene flow between them stops. Over a period of time, the population may become genetically different in response to the natural selection due to different environments. Selection and genetic drift will act differently on these two separated populations. This will results into two separate species. This type of speciation is called allopatric speciation.
The pressure would increase. This can be explained by the ideal gas law where for an ideal gas its pressure, volume and temperature is a function of each other ans is expressed by an equation: PV = nRT. We first need to assume that this gas given is ideal. When the temperature and the number of moles is set to a constant value while the volume decreases, we can see that from the equation pressure and volume are indirectly proportional to each other, therefore as the volume decreases, the pressure inside increases.