Sagot :
Answer:
1 . the sun
2. sphere
3. light, heat and solar energy
4. It is by for the most important source of
energy for life Plants need sunlight to grow. Animais
including humans, need plants for food and the oxygen
they produce.
5. earth would freeze
Answer:
1. The Sun
The SunThe Sun is the center of our solar system and makes up 99.8 percent of the mass of the entire solar system.
2. round
3.The Sun gives off many kinds of radiation other than light and heat. It also emits radio waves, ultraviolet rays, and X-rays. The Earth's atmosphere protects us from the harmful effects of the ultraviolet rays and the X-rays.
4.Nothing is more important to us on Earth than the Sun. 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.
5.Without the Sun's warmth, Earth would quickly become a much colder place. Fortunately, Earth retains heat fairly well, so humans wouldn't freeze instantly. Life would get much more difficult immediately, though. ... Without the Sun's rays, all photosynthesis on Earth would stop.
Explanation:
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