Wich of the following ingredients produce a heterogeneous mixture when mixed together ? a. oil and water
b. sugar and water
c. salt and vinegar
d. molten copper and zinc​

the answer is A

oil and water

relative humidity, temperature and dew point -- are bound together in the mathematical relationship below. relative humidity changes when temperatures change. because warm air can hold more water vapor than cool air, relative humidity falls when the temperature rises if no moisture is added to the air. so i would say a

oak trees? ? what was listed