Vertical columns are called groups, or families.
They share similar chemical properties.
Answer: <span>have similar chemical properties</span>
20. Would be the right answer
The answer is B
Vaporization
Answer:
There are many properties that scientists use to describe waves. They include amplitude, frequency, period, wavelength, speed, and phase. Each of these properties is described in more detail below. When drawing a wave or looking at a wave on a graph, we draw the wave as a snapshot in time.
Explanation:
C. because it doesn't break down without chemicals, so it would eventually just pile up.