About 93 million miles or 150 km or 8 light minutes (don't know what that means)
Answer:
Reflected ray
Explanation:
The angle between a reflected ray and the normal drawn at the point of incidence to a reflecting surface is the angle of reflection.
Two examples of radioisotopes that can be used are carbon-14 to determine the age of fossils. Second, we can use iodine-131 to treat thyroid disease.
Its b. Ecosystem
Population is the number of a species in an area, it has nothing to do with physical characteristics.
Abiotic is just an adjective meaning not alive
Competition is just the interactions between organisms in the struggle for food, water, space, mates, and many other things again not physical characteristics
