Factors that makes planet habitable.pptx

Earth is a vibrant and dynamic planet, the third from the Sun in our solar system, renowned for its diverse ecosystems, abundant life forms, and rich natural resources. Characterized by its blue oceans, green landscapes, and varied climates, Earth supports a complex web of life that ranges from microscopic organisms to towering forests and expansive deserts. Its surface is shaped by geological processes such as tectonic activity, erosion, and volcanic eruptions, contributing to its ever-changing features. The planet's atmosphere, composed of nitrogen, oxygen, and other gases, plays a crucial role in regulating temperature and sustaining life by providing essential resources and shielding it from harmful solar radiation. Earth’s unique combination of conditions makes it a rare oasis in the universe, fostering an intricate balance that supports and nurtures life.

1. THE PLANET EARTH

2. TOPICS factors that makes a planet habitalble 01 Uniqueness of earth 02 Similarities and Differences of earth on Mars and Venus 03

3. Earth is the only planet in the solar system known to harbour life. Our planet has a molten nickel-iron core which gave rise to an extensive magnetic field, which, along with the atmosphere, shields us from harmful radiation coming from the Sun. THE PLANET EARTH

4. Life seems to be limited to a temperature range of -15 degree C to 115 degree C. In this range, liquid water can still exist under certain conditions. TEMPERATURE

5. Earth and Venus are the right size to hold a sufficient atmosphere. Earth’s atmosphere is about 100 miles thick. It keeps the surface warm and protects it from radiation and small- to medium-sized meteorites ATMOSPHERE

6. With a steady input of either light or chemical energy, cells can run the chemical reactions necessary for life. ENERGY

7. All solid planets and moons have the same general chemical makeup, so nutrients are present. Those with a water cycle or volcanic activity can transport and replenish the chemicals required by living organisms. NUTRIENTS

8. It has liquid water surface or lithosphere which includes the crust and the upper mantle UNIQUENESS OF EARTH It has atmosphere that shelters it from the worst of the sun’s rays. Right distance from the sun it is protected from harmful solar radiation by its magnetic field

9. 70% WATER Earth has “BLUE PLANET”

10. INSULATING ATMOSPHERE It is kept warm by an

11. Terrestrial Planet Have an atmosphere Have Carbon Dioxide Have no oxygen No water No life forms VENUS EARTH MARS Terrestrial Planet Have an atmosphere Have Carbon Dioxide Have oxygen Contains water Have life forms Terrestrial Planet Have an atmosphere Have Carbon Dioxide Have no oxygen Contains water No life forms

12. ASSIGNMENT Can man change or adjust Mars’ environment to make it more suitable for human habitation? How? List down 5 ways in a 1/2 crosswise to be submitted next week.