Which of the following best describes Growing Degree Day total? a measure of the amount of heat needed to encourage plant growth

a measure of the amount of heat tolerance a plant demonstrates

a measure of the amount of heat a plant must experience before reaching maturity

a measure of the amount of heat a plant is exposed to over a single day

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.