Question

What conditions favour life on the Earth?

Answer 1

• Suitable temperature: Earth is at an optimal distance from the Sun, resulting in a moderate average surface temperature (14-17°C) that supports life.
• Presence of essential elements: Carbon, hydrogen, nitrogen, and oxygen are available, which are the building blocks of life.
• Sufficient oxygen: Needed for respiration by living beings.
• Protective atmosphere: Earth’s atmosphere blocks harmful radiation, maintains moderate temperatures, contains essential gases (78% nitrogen, 21% oxygen), and burns out meteorites.
• Adequate water: Present in liquid, solid, and gaseous forms, vital for all life forms and chemical reactions.
• Soil cover: Provides nutrients and a medium for growing food.
• Biosphere availability: Life exists where lithosphere, hydrosphere, and atmosphere interact, providing life-sustaining conditions.