It’s d special purpose :)) just did this
its Determined by its density
Answer: D.) They study the stars and gases around black holes.
Explanation: Given the technology that we have in the 21st century (as of 2020), scientists cannot study black holes directly, and must resort to observing and detecting how the presence of them exists by noting how they take an effect on the matter surrounding them.
The example in the given scenario is the proactive
interference. This occurs when an
individual most likely has memorized or has in mind of things or information
that she or he is used to and that it usually triggered when there is a
presence of category change.
