Question

1. runoff in regards to pollution means that: *

chemicals humans use on land runs into the water and affects aquatic ecosystems
materials used for building by humans fall into aquatic ecosystems

1. an invasive species is: *

a native species to the land
a species that moves to a new land on its own
a non - native species that humans bring to a new land

Explanation:

1. Runoff pollution occurs when chemicals used on land, like fertilizers and pesticides, are carried by water into aquatic ecosystems. Building materials falling into aquatic ecosystems is not the main definition of runoff in terms of pollution.
2. An invasive species is a non - native species that humans introduce to a new land, which can cause harm to the native ecosystem. A native species is not invasive, and a species that moves on its own is not necessarily invasive in the human - introduced sense.

Answer:

1. Chemicals humans use on land runs into the water and affects aquatic ecosystems
2. A non - native species that humans bring to a new land