This image shows a metamorphic rock.
which phrases accurately describe this rock? check all that apply.
formed underground
randomly arranged grains
formed through sediments
formed by extreme heat and pressure
layers that tend to split apart along bands.

Which of the following is true about the introduction of a non-native species to an environment? (a) they usually adapt quickly so they can have a positive affect on the environment. (b) they can disrupt the environment and cause much damage and devastation to native species. (c) they usually become predators in a food chain and to keep prey populations under control. (d) because the native species are better-adapted to the environment, the non-native species always end up dying out.