Why would it be important to find out/who the virus came from ?

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.

Why is the statement not a hypothesis? sunflowers require soil and plenty of sunlight and water to grow and thrive.

Which to produce involved from a symbiotic relationship of organisms which resulted in eukaryotic organisms contain chloroplast