Energy from the sun heats the earth. As air near the ground is heated, it rises, then cools as it moves higher, then eventually sinks back to the ground. This circular motion of air is known as?

One statements is an example of a scientific observation. another statement is an example of a scientific explanation. identify the correct statement for each category to illustrate how scientific explanations are inferred from scientific observations.

The theories on the expansion of galaxies maybe re-examined to strengthen science should not be tested to strengthen science will weaken scientific knowledge if they change will become laws if they don't change

Which of the following statements is true of cells