a) Characteristics of earth as a supporting planet of life
A habitable planet must have specific features for sustaining life, including a stable atmosphere and breathable gases.
Earth has liquid water on its surface
Approximately 71 percent of earth is composed of water which is essential for life.
Earth is the only planet with continents
Continents are large, continuous masses of land that sit on top of plate tectonics and “float” on the planet’s mantle. Earth is the only planet in the Solar system that has continents.
Earth is the only planet with just one Moon
The planets that are closer to their stars cannot be able to capture moons because of its strong gravitational pull while earth has low gravitational pull which enables it to have one moon.
Earth’s atmosphere is very different from the other planets’
Atmosphere is an outer layer of gas that, it is located between the planet and space. Earth is so unique when compared to other planets this is because it has oxygen which helps to support life.
Earth’s temperature is stable
While other planets have extreme temperature earth has remained stable which enable it to be hospitable for living organisms this has enable it to become more habitable.
Distance from the sun.
Earth is the third from the sun which make it habitable because it is neither hot nor cold. Some planets are cold while others hot which makes them not suitable to support life
Availability of ozone layer.
Presence of ozone layer also contributes to supporting of life as it helps in absorbing of ultraviolet rays which prevents skin cancer. This characteristic makes it suitable for supporting life.
Hi Nancy ,your post is well delighting about whether life exists beyond earth . I am so curious and looking forward to be educated by your research.
Hi, Nancy, your research is like a detective story of where we are living and what surrounds us. I you know am also working in almost the same field, so I was very attentive in every statement and what i observed is that you`ve a lot of knowledge on this area that you ort to share with us. I’m looking forward to increasing my knowledge from your research. Thankyous a lot for educating me.
Hi Nancy, I would like to appreciate you for your amazing research which will educate Geographers like me. Lets be educated together as you continue with your research.