Which statement correctly explains the molecular structure of water? one oxygen and two hydrogen atoms are joined by a covalent bond. one hydrogen and two oxygen atoms are joined by a covalent bond. one oxygen and two hydrogen atoms are joined by an ionic bond. nextreset

Astudent reads the following text in a science book: scientific evidence tells us that the cause of earths four seasons is the tilt of earth as it revolves around the sound the student is instructed to illustrate this information in a science book. how will the student illustrate winter in the northern hemisphere? a.earths northern hemisphere will tilt away from the sun. b. earths northern hemisphere will tilt toward the sun. c.earths orbit will be farther away than from the sun d. earths southern hemisphere will tilt away from the sun.

Which gas found in the earth's atmosphere greatly impacts the daily range of temperature on earth. a) oxygen b) hydrogen c) nitrogen d) water vapor

This is the interaction of two organisms where one is and the other is neither nor harmed.