Question

Frnds this is my exam please help me​

Answer 1

Answer:

2. celcius and kelvin

3. iron and silver

4. polar bear and seal

Answer 2

Answer:

2. The two most common temperature scales are the Fahrenheit and Celsius.

3. co2 and o2(carbon dioxide and oxygen)

4. seals and penguins

5. an element is a pure substance consisting only of atoms that all have the same numbers of protons in their atomic nuclei.

6. Atomicity is defined as the total number of atoms present in a molecule.

Explanation:

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