Answer:
Soviet, Union, United, States, and Mars should all be capitalized.
Explanation:
The Soviet Union and United States are countries and countries should always be capitalized as they are proper nouns.
Mars should also be capitalized as it is a planet (which is also a proper noun).
sorry i put it in wrong place its on explanation!
i only see 2 the United States needs to be capalized and im pretty sure manned is spelt wrong
a
Significant. Fractional sounds like "fraction," which is typically meaning a value less than one, but not quite zero. AKA, very small.
The opposite of a very small change would be a very big change. Which is what a significant change is.
this sentence is true.
