Answer;
-Temperature
Explanation;
-A biome is a major, geographically extensive ecosystem, structurally characterized by its dominant life forms. Biomes are classified by the amount of rain they receive and what the temperature level is. Climate variation with special emphasis on moisture or precipitation may be used to differentitate biomes into various types.
-Terrestrial biomes are usually distinguished on the basis of the major components of their nature or climax vegetation, while aquatic biomes, especially marine ones, are often characterized by their dominant animals.
The answer is <span>The increased nitrates from the fertilizers leech into the water and cause algal blooms, which take oxygen out of the water and this suffocates fish.</span>.
Algae blooms are the consequence of large amounts of farm
fertilizers in the rivers, which increases nitrates level in the water. Algae use the presence of increased nutrients
and enhance their own growth. It is known that they produce
an oxygen in the photosynthesis, so it is not a problem while they are
still alive. But when these organisms die, their decomposition begins. For the
process of decomposition, the oxygen is needed and ultimately it will be depleted
from a body of water. This could lead to the death of aquatic animals, such as fish, that
depend on oxygen.
If the farmer were to breed both of the two different types of cattle he would have a hybrid type of new cattle with both traits :)