I don't know what the options were but a material that is very likely going to be challenging to recognize under a microscope as a mixture is a homogeneous mixture. A homogenous mixture is uniform and thus hard to recognize as a mixture. An example is water!
Answer:
the correct answer is Group of answer choices
Answer:
FeSO2
Explanation:
Please see attached picture for full solution.
The greenhouse effect is when Earth's atmosphere gets surrounded with gasses causing the Earth to warm up.
Answer:
The melting point of the solid is higher in temperature then it is compared to the freezing point of the liquid.
Explanation:
