Natural selection is the right answer hope this helps.
Because it takes LOADS of feathers to make up 1kg and lead would be such a small amount, it could fit in a purse.
Answer:
Carbon dioxide, methane, and water vapour are the most important greenhouse gases.
Answer: There is a teacup orbiting the Milky Way galaxy.
Explanation: Hello!
To find the correct answer, you need to find a hypothesis that cannot be proven wrong. All but one can indeed be proven wrong. The correct answer is there is a teacup orbiting the Milky Way galaxy because there is no way anyone can tell if there is a teacup orbiting the Milky Way galaxy or not. We know that it can be proven wrong because there is no life on Mars, the human species started in Africa and that humans cannot live without a certain amino acid. The only thing that really can’t be proven wrong is the one about a teacup.
