Which of the following represents the sustainable use of waste products? I. Siphoning methane gas from landfills to use for energy
II. Mining for precious metals in e-waste
III. Incinerators that burn all materials, including plastics.
III only
I and II
I and III
I, II, and III

25) a student takes four samples of a white crystalline solid and places each in a well plate. on top of each sample, she carefully places 20 drops of clear mystery liquids a, b, c and d. her results for each well are: liquid a: the solid dissolves quickly. liquid b: the solid appears unchanged. liquid c: a brownish colored liquid is produced. liquid d: fizzing occurs and the well becomes warmer. in which well does a physical change occur?

How do diseases caused by bacteria and diseases caused by viruses react to antibiotics?

Which entry is in the wrong position in the table?