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FrozenT [24]
2 years ago
13

Good morning! Can someone please answer this, ill give you brainliest and you will earn 50 points.

Physics
1 answer:
kicyunya [14]2 years ago
8 0

Correct ones are

  • Technical improvements that have made alternative energy sources more practical to use
  • Increase in concern for environment.

why?

Fossil fuels are hydrocarbons

  • Hydrocarbons on burning with oxygen releases harmful carbon dioxide .
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A comet is cruising through the solar system at a speed of 50,000 kilometers per hour foe 4 hours time. What is the total distan
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Answer:

<em>The distance covered by comet is </em>200,000 km

Explanation:

Speed is defined as the rate of change of distance with time. It is given by the equation speed= \bold{\frac{distance}{time}}

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2 years ago
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Answer:

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