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Biology, 06.10.2020 17:01 iajiborode8944

WILL GIVE BRAINLIST SO PLZ HELP 1. In some areas, limestone is found underneath the soil. In these areas, water can wear away the limestone and sinkholes may form on the surface. What is responsible for the formation of sinkholes?
A. deposition
B. Physical weathering
C. Chemical weathering

2. It is not always clear when a substance undergoes a chemical change. Which of the following is MOST LIKELY evidence of a chemical change?

A. A substance gives off heat.
B. A substance gets smaller.
C. A substance changes volume.

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Answers: 2

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