They respond to all of these except color
hope dis helps ^-^
Answer:
I believe it is be
Explanation:
Depending on the type oil, it can be natural and non renewable
Answer:
availability of resources.
Explanation:
Availability of resources is abiotic factor which is responsible for the decrease in population in 1990 because when the population reaches its carrying capacity so the organisms compete with each other and due to limited resources such as food etc the decrease occurs in population. Infection is also occurs when there is high population due to which death occurs and population of organism decreases.
Changes in temperature, salt concentration, ionic concentration, of pH levels