(A) a major change in an abiotic factor
Answer:
pollution of water. or do you mean pollutant in which case would be like garbage or oil spills
Is it the food cycle you are referencing? This is when an organism lives off the energy it's surroundings (food) provide. Or in the case of producers makes its own energy.
Answer:
Class A
Explanation:
Because they're combustible materials
Answer:
such as tissue paper, do not allow light to pass through as easily, and images cannot be seen clearly. Opaque materials, such as wood and metals, allow no light to pass through.
Explanation:
