Cutting an apple is a physical change. the chemical make-up remains the same.
Answer:
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If this is you’re full question
Erica and Amy started biking in the opposite directions at the same time from the same place. Erica biked at a speed of 6 meters per second and Amy biked at a speed of 4 meters per second. How soon were they exactly 1 km apart?
Than the answer is 100 seconds
Actually, people can only speculate what actually happened. Atheists have their beliefs and so do other religions. Christianity believes that when God created the world, he made the seas, oceans, rivers etc. :)