How to Defrost a Mini Fridge Fast: 1  1. Unplug your fridge. 2  2. Take all items out of your refrigerator and/or freezer and put them in a cooler with a lid. 3  3. Open the door/doors to your mini fridge and leave them open for 60 minutes.
There is no distinct boundary between the atmosphere and space, but an imaginary line about 68 miles (110 kilometers) from the surface, called the Karman line, is usually where scientists say atmosphere meets outer space. The troposphere is the layer closest to Earth's surface. It is 4 to 12 miles (7 to 20 km) thick and contains half of Earth's atmosphere. Air is warmer near the ground and gets colder higher up. Nearly all of the water vapor and dust in the atmosphere are in this layer and that is why clouds are found here. The stratosphere is the second layer.
Three of the four inner planets (Venus, Earth and Mars) have atmospheres substantial enough to generate weather. All of them have impact craters and tectonic surface features as well, such as rift valleys and volcanoes. Mercury: Of the inner planets, Mercury is the closest to our Sun and the smallest of the terrestrial planets. This small planet looks very much like the Earthâs Moon and is even a similar grayish color, and it even has many deep craters and is covered by a thin layer of tiny particle silicates.