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.
Best Answer: Breeding. Gopher tortoises usually mate during April and May. Shortly after mating, the female lays between three and 15 eggs, either in a sandy mound in front of her burrow or a nearby sunny place. The eggs mature and hatch from 70 to 100 days later. The hatchlings spend much of their time in their mother's burrow until they're old enough to dig their own. They don't reach maturity until they are between 10 and 15 years old, when their shells are about 9 inches long.