Samantha plants some flowers in a flower bed and then ignores them. Soon weeds grow and the flowers die. The weeds had been able to get enough resources to survive, while the flowers had not. This is an example of
O A) competition
OB) population size
OC) habitat
O D) community

Which of these statements best explains why space exploration should be encouraged? it prepares humans to live without oxygen. it dispel myths about objects in space. it prevents comets and asteroids from striking earth. it creates technology to absorb harmful radiations in space.

As light moves from one material into the next, which of the following affects how much the light waves will refract, or bend? angle at which the ray strikes the medium color of the material density of the material temperature of the light wave

An isotope undergoes radioactive decay. the new isotope that forms has an atomic number fhat is 2 less than the original isotopes. which kind of decay has occured and how do you know