Adam is built on a large river. backed-up water behind the dam forms a lake, like in the picture below. the dam doesn't just hold back water; it also holds back soil and sediment. how will the dam most likely affect the river downstream? a. natural deposition rates will increase. b. natural weathering rates will decrease. c. natural deposition rates will decrease. d. natural weathering rates will increase.

Explain why the aperture of the spherical mirror should be small compared to the radius of curvature of the mirror.

Laboratory experiments, observational field studies, and model-building are all examples of different forms of scientific investigations.  in what way do laboratory experiments primarily differ from other forms of scientific investigations?   a.  a laboratory experiment is the only accepted form of investigation within the scientific community.  b.  studies about how things behave in nature or studies involving very large objects are best answered through laboratory experiments.  c.  laboratory experiments involve the identification and control of variables.  d.  data can only be generated through laboratory experiments, not other forms of investigation.

If element x has 99 protons how many electrons does it have