Question

Earth is a target in a cosmic shooting gallery, subject to random violent events that were unsuspected a few decades ago. In 1991 the United States Congress asked NASA to investigate the hazard posed today by large impacts on Earth. The group conducting the 55 study concluded from a detailed analysis that impacts from meteorites can indeed be hazardous. Although there is always some risk that a large impact could occur, careful study shows that this risk is quite small.
4. According to the passage, who conducted investigations about the current dangers posed by large meteorite impacts on Earth?
A. Paleontologists
B. Geologists
C. The United States Congress
D. NASA

Answer 1

Answer:

NASA conducted investigation about current .......