Answer: Up
Explanation: when an electron goes up it produces more energy which makes light. :)
Answer:
Aquatic life quickly suffers the effects of watershed pollution, while new pollutants introduced into ecosystems alter wildlife habitats. This reduces biodiversity by eliminating some species and introducing new, invasive ones that destroy the native species.
Explanation:
The element carbon makes long chains forming, single, double or triple bonds with itself.
Vertebrates. they are all chordates, which mean they have a notochord somewhere in their body.