The Biosphere –contains all the planet’s living things. This sphere includes all of the microorganisms, plants, and animals of Earth. Within the biosphere, living things form ecological communities based on the physical surroundings of an area.

biosphere

The Earth has two basic sources of energy – that reaching the Earth from the Sun (Solar Energy) and that reaching the surface of the Earth the Earth itself (Internal or Geothermal Energy). Solar Energy – reaches the Earth in the form of radiant energy, and makes up 99.987% of the energy received by the Earth.

The Sun

The sun’s energy is absorbed by plants and used in the photosynthesis process to convert carbon dioxide into oxygen. The oxygen is then released from plants into the atmosphere. Humans use the energy from the sun to help in the process to build bones.

An excess of sweetened foods and beverages can lead to weight gain, blood sugar problems and an increased risk of heart disease, among other dangerous conditions. For these reasons, added sugar should be kept to a minimum whenever possible, which is easy when you follow a healthy diet based on whole foods.

Without the Sun’s heat and light, the Earth would be a lifeless ball of ice-coated rock. The Sun warms our seas, stirs our atmosphere, generates our weather patterns, and gives energy to the growing green plants that provide the food and oxygen for life on Earth.

It flows as radiation from the surface into space, warms our planet and sets in motion many chemical and physical processes. Without sunlight, it would be bleak on earth. There wouldn’t be any plants, animals and people. There would be no other form of life.

A relatively simple calculation would show that the Earth’s surface temperature would drop by a factor of two about every two months if the Sun were shut off. The current mean temperature of the Earth’s surface is about 300 Kelvin (K). This means in two months the temperature would drop to 150K, and 75K in four months.

about 5,years

A supernova — specifically, a core-collapse supernova — can only occur when a star many times more massive than our Sun runs out of nuclear fuel to burn in its core. When our Sun runs out of hydrogen fuel in the core, it will contract and heat up to a sufficient degree that helium fusion can begin.

Surface. As a gas giant, Jupiter doesn’t have a true surface. While a spacecraft would have nowhere to land on Jupiter, it wouldn’t be able to fly through unscathed either. The extreme pressures and temperatures deep inside the planet crush, melt and vaporize spacecraft trying to fly into the planet.