The evidence that scientists use to confirm big bang is the ancient quasars and old galaxies that exist
contain the expected
of gases

What happens when a magniseum ion ia atracked to a chlrene ion

Which statement best describes a keystone species? o a. it has littlelmenetic variation. it has an extremely high population. 0 b. 0 c. it remains unaffected by all environmental changes. od. it has a strong influence on the ecosystem. 0 e. it's the first species to populate a new ecosystem.

Which would be the most useful source of evidence to support mcneill's contention?