Scientists confirmed that the fossil of a human jaw bone was 177,000 to 194,000 years old. Did they use carbon-14 or potassium- argon dating? explain.

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.

Are the layers of rock above and below the coal older or younger?

Mutations can be categorized based on the kind of effect they have on an organism