Masks are effective only when used in combination with frequent hand-cleaning with alcohol-based hand rub or soap and water. The correct way to wear and dispose of masks.
Frogs are both land and water creatures that keep the environment in balance by acting as both predators and prey.
Free Incredible watercolor leaf transparent images in HD illustrations and vectors for your subjects.
Snow, the solid form of water that crystallizes in the atmosphere and, falling to the Earth, covers, permanently or temporarily, about 23 percent of the Earth’s surface.
