Please help!

The image illustrates a building with a green roof - a roof that is covered in living vegetation. Green roofs help to solve one part of a complex problem. A green roof increases the amount of carbon dioxide taken up in an urban area and reduces the building's energy costs for heating and cooling.

Which problem are green roofs most likely helping to solve?

A. Reliability of power supply

B. Urban worker safety

C. Public health issues

D. Environmental impact of paved surfaces

How are carbon dioxide emissions affecting the earths natural cycle of temperature change? plz apex

Why does the skin of your finger shrink when you wash clothes for a long time?

What was dr. willem johan kolff’s first step in using the scientific process to invent the hemodialysis machine? he built the machine and tried it with various patients, collecting data about its effectiveness. when a patient’s kidneys failed, he wondered if it would be possible to perform kidney functions with an external machine. he researched and collected data about numerous patients who exhibited symptoms of kidney failure. he drew conclusions from studies of various symptoms of kidney failure, and drew a design for the ideal external blood-processing machine.