UPVC windows are cleaned with water and vinegar mixed in a sprayer. Jupiterimages/BananaStock/Getty Images. Unplasticized polyvinyl choloride, or UPVC, is a rigid and chemically resistant plastic used often in window and door frames.
Clutch size: 35-50 eggs. In April or May, the female crocodile will build a nest of loose dirt in a mound by the water's edge and lay her eggs. She buries the eggs and fiercely guards her nest. When the eggs hatch in July or early August, the female helps carry her young to the water.
The platypus typically lays one to three eggs at one time. After mating, it builds a nesting chamber before it is ready to lay the... The platypus typically lays one to three eggs at one time. After mating, it builds a nesting chamber before it is ready to lay the eggs. Continue Reading