Explanation:
Roughly one out of every thousand stars that form is massive enough to become a black hole. Therefore, our galaxy must harbor some 100 million stellar-mass black holes. Most of these are invisible to us, and only about a dozen have been identified. The nearest one is some 1,600 lightyears from Earth.
Answer:
Look down
Explanation:
The philosophical position known as constructivism views knowledge as a human construction. Constructivism is based on the premise that knowledge is not part of an objective, external reality that is separate from the individual. Instead, human knowledge is a human construction.
