Describe two ways evolution of organisms can have harmful effect on humans

What happens whenever a net force acts on an object

Which of the following particles always has a positive charge? a. electronb. neutron c. proton d. ion

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)