Which of the following is a cost of recycling aluminum? A. Preserving Earth's remaining aluminum reserves
B. Producing toxic waste products
C. Using energy to transport a heavy metal
D. Disrupting tropical rain forest plants and animals

See explanation

Explanation:

If we look at the structure of X, we will discover that X is an organic compound. The compound will certainly have a much lower melting point than sand.

This is because, sand is composed of high melting point inorganic materials.

Hence, even though the researcher accidentally spilled some sand into the the beaker containing the crystalline substance X, he does not need to be perturbed since the melting point of X is much lower than that of sand