Atoy car is placed at 0 on a number line it moves 9 cm to the left then 4 cm to the right and then 6 cm to the left

Explain why ecosystem diversity results in species diversity in a healthy biosphere

What is responsible for the uneven heating between the poles and the equator on any given day

The two tubes contain bromothymol blue. after 24 hours, what will the color of the water be in tube b? a. green (it won't change) b. yellow c. blue d. colorless (clear)