Why are crystal clues used to identify metamorphic and igneous rocks, but not sedimentary rocks?

Jewelweed, a flowering plant, has seed pods that burst open when touched and forcefully eject their seeds. these structures are favorable because they a. can cause genetic changes to occur. b. prevent germination within the seed pod. c. aid in the dispersal of the species. d. attract insects that aid in pollination.

How heavy is thanos? a) 3000 lbs b) all of it c) the price of tea in china d) heavy enough

Name the element in group 17, period 2. (periodic table)