Which of the following is NOT an example of an atom?
A. A water molecule
B. The smallest part of oxygen
C. The smallest part of helium

What element breaks down into yttrium-90?

What best discribes the relationship between wavelength and frequency in a electromagnetic wave

Ascientist wants to know how individual lions within a pride interact with each other in their own environment. to do this, the scientist sedates and tags all of the lions within a pride. then, he places several remotely-controlled video cameras near the lions' den and performs an observational field study. he collects continuous video footage over the span of one year, analyzes the video, and then forms conclusions based on his observations.