What step occurs first in a scientific investigation and in the development of a new technology? -Findings are communicated to others.
-A problem or need is identified
-A series of tests are analyzed.
-Information is researched

State the below theories and give the name of the writer of the theory 1. wave theory 2. quantum theory 3. corpuscular theory 4. electromagnetic theory

Which of these is the best way to manage a natural resource

Which statement describes the formation of our sun? a disk formed of long trails of stars coiled into a spiral. it formed an elliptical flattened disk. heat and gases contracted within a nebula. gravity pushed stars away from a center core.