Most difficult question of all time. can you

when combining with nonmetallic atoms, metallic atoms will generally,

a) lose electrons to form positive ions called cations.

b) lose electrons form positive ions called anions.

c) gain electrons to form negative ions called cations.

d) gain electrons to form negative ions called anions.

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.