arid Australia brown bush bushland central-Australia desert-country desert-region dry height high hot inland outback outcrop ridge rocks rocky rough rugged scrub shrubbery sunlight sunshine terrain textures trees vegetation dead drought drought-stricken grass bar basin bathroom bubbles clean cleanse dirty disinfect faucet germ hand hands hygiene infection Lather prevent prevention rinse sanitize sink soak soaking soap soapy spot sterile tap wash washing water wet woman