How can Earth’s layers be defined? Select the two correct answers.(1 point) by their chemical compositions

by their physical properties

by their proximities to the core

by their amounts of land area

by their asthenospheres

Awater molecule is polar because there is an uneven distribution of these between the oxygen and hydrogen atoms.

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.

What are two reasons for why a species might disappear from the fossil record?