I just need the answer to question 23. Please help me..

State officials are considering constructing a road through a forested wilderness area. this action will likely affect the forest ecosystem in various ways. part a: predict how the construction of a road could negatively affect plants and animals in that ecosystem. (3 points) part b: describe one way that the construction of a road could have a positive impact of the forest ecosystem. (1 point)

How energy flows through each level in this energy pyramid. is all the matter and energy from one level transferred to the next level?

During convection, less dense fluid rises and denser fluid sinks.