Answer:
B
Explanation:
The warmer the water, the more space it takes up, and the lower its density.
I think that the answer is d
Answer:
Metalloids are metallic-looking brittle solids that are either semiconductors or exist in semiconducting forms, and have amphoteric or weakly acidic oxides. Typical nonmetals have a dull, coloured or colourless appearance; are brittle when solid; are poor conductors of heat and electricity; and have acidic oxides.
Explanation:
C. a plane for forming a scientific hypotheses