16. what type of luster does a mineral have if it shines like metal?\n a. glassy\n b. metallic\n c. dull\n…

16. what type of luster does a mineral have if it shines like metal?\n a. glassy\n b. metallic\n c. dull\n d. pearly\n\n17. how can individual choices impact ecosystems?\n a. they can either harm or protect ecosystems\n b. they always improve ecosystems\n c. they always damage ecosystems\n d. they have no significant impact\n\n18. which phase follows the first quarter?\n a. new moon\n b. last quarter\n c. waxing gibbous\n d. waning gibbous

16. what type of luster does a mineral have if it shines like metal?\n a. glassy\n b. metallic\n c. dull\n d. pearly\n\n17. how can individual choices impact ecosystems?\n a. they can either harm or protect ecosystems\n b. they always improve ecosystems\n c. they always damage ecosystems\n d. they have no significant impact\n\n18. which phase follows the first quarter?\n a. new moon\n b. last quarter\n c. waxing gibbous\n d. waning gibbous

Answer

Brief Explanations:

  1. Minerals with a metallic luster shine like metal. So for a mineral that shines like metal, it has a metallic luster.
  2. Individual choices can have both positive (protect ecosystems) and negative (harm ecosystems) impacts on ecosystems.
  3. The phases of the moon follow a cycle. After the First - Quarter moon, the Waxing Gibbous phase comes next.

Answer:

  1. b. Metallic
  2. a. They can either harm or protect ecosystems
  3. c. Waxing Gibbous