Answer:
Life science is alternatively known as biology, and physical science is subdivided into branches: physics, chemistry, astronomy and Earth science. These branches of natural science may be further divided into more specialized branches. But that is more writting to explain
Explanation:
Mass is the physical property of matter can be expressed numerically in SI units.
Answer: [A]: "<span><span>two atoms, both the same element, bonded together</span>".
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A substance that donates electrons to form a covalent bond. So the answer is B
