The letter Is C
because dentists/doctors
have to move from a dirty place
to a clean place so thier patients wont get infected
Hope this helps mark brainlist
Answer:xylem andvphloem
Explanation
Vascular tissues are conducting vessels in plants.They are complex in structure.
The xylem.conduct water and minerals uphill from the soil to other parts of the plants
The phloem conduct products (nutrients)of photosynthesis ( glucose) down from the leaves to other parts of the plants.
Climate, especially temperature and rainfall patterns
Microclimates on the roof top
Strength of the supporting structure
Size, slope, height and directional orientation of the roof
Type of underlying waterproofing
Drainage elements, such as drains, scuppers and drainage conduits
Accessibility and intended use
Visibility, fit with architecture, and owner’s aesthetic preferences
Fit with other ‘green’ systems, such as solar panels
Materials and labor costs
Answer:
it can clean the water
Explanation:
keeping the water clean improves the quality and is healthier for you