Skills 1 - Unit 12 - English 8 Global Success (Page 130)

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Các câu hỏi thường gặp

1.

What are the main conditions for a planet to support human life?

A planet needs to have enough liquid water, hold an atmosphere, and maintain a suitable temperature for human survival. These are the key conditions to sustain life.
2.

Why is Mars considered one of the most promising planets for life?

Mars is considered promising because it has similar characteristics to Earth, including a 24.5-hour day and seasonal cycles. However, its climate and lack of oxygen make it unsuitable for human life.
3.

What is the importance of liquid water on a planet for sustaining life?

Liquid water is essential for life because it supports various biological processes. Without it, planets cannot sustain living organisms, making water a fundamental condition for habitability.
4.

Why is the amount of air on a planet crucial for sustaining life?

A planet must have the correct amount of air to maintain an atmosphere. This atmosphere is vital for regulating temperature, providing oxygen, and supporting life processes.
5.

How long does a day on Mars last?

A day on Mars lasts for 24.5 hours, which is almost similar to the length of a day on Earth, contributing to its potential as a habitable planet.
6.

What happens if a planet is too small to support life?

If a planet is too small, its gravity is not strong enough to retain a sufficient atmosphere. This makes it unable to support life as the air would escape into space.
7.

Why is the temperature of a planet important for human habitation?

A planet's temperature must be suitable for humans to survive. If it's too hot or too cold, it cannot support human life, making temperature one of the critical conditions for habitability.