Answer:
1. The observable universe
2. the moon
3. false
4. a black hole
5.
6. moving away from us
7. stretch as the galaxies move away from us
8. expanding
9. cosmic microwave background
D. Electrons because isotopes deal with electrons.
Long-term storage of information of a living thing.
Answer:A) look at a spider
Explanation:
Arachnophobia is an abnormal or irrational fear of arachnids (especially spiders). In this context a sight of the spider put him to flight.
Because you cannot test it or observe it.
A scientific theory are created through the scientific method, in the scientific method you need to be able observe it and experiment.