A natural habitat is an ecological or environmental area where a specific species lives. It is the place in nature that particular species calls home. To help picture what this means, think of a zoo.
Quick Answer. A mixture of vinegar and borax will kill most algae growing on bricks and concrete. Homeowners do not need harsh chemicals to get rid of these pesky growths.
You can kill mold and remove it from concrete by using a steam cleaner. You can rent steam cleaners normally used for steaming wrinkles out of draperies. Load water in the steam cleaner and let the machine warm up. Then blast the mold with spurts of hot steam. Rinse the area with clean water.