The correct answer is a nutrient runoff.
Nutrient runoff is a major reason for eutrophication of surface waters, in which extra amount of nutrients, generally phosphorus or nitrogen, instigate growth of algae. Sources of nutrient pollution involve surface runoff from pastures and farm fields, emissions from combustion, and discharges from septic tanks.
Answer:
b
Explanation:
all living things are made up of cells.
The answer is A (1) Prokaryotes
The complete question is:
If these organisms were arraigned in a food pyramid, which organism would have the least amount of total energy available?
- Producers
- Carnivore
- Herbivores
- Top predators
Answer: Top predators
Explanation:
The top predators get the least energy because according to the 10 per cent law the energy transfer only 10 energy is transferred to the next successive level.
The next level of the organism receives only 10 of the total energy that the previous level has.
Hence, the top predators have the least amount of energy in it as the energy is transferred through various levels before reaching top predators.
Answer:
B. Earth rotates on its own axis and revolves around the Sun.
Explanation:
The earth moves not only in one way but in two ways. It revolves around its axis and revolves around the Sun.
We do not notice it because we are on Earth and we turn together with it.
When the Earth revolves around its (imagined) axis, we call such a movement a rotation, and when it revolves around the Sun - a revolution.
