Answer:
Scientists once thought the most fundamental building block of matter was a particle called the atom. Now we know that the atom is made of many smaller pieces, known as subatomic particles. Every atom contains a central core called the nucleus, made of particles called protons and neutrons.
B seasonal variations in climate tend to increase with distance from the equator
Answer:
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Answer:
Proteins and carbohydrates
Explanation:
Using the supplements for dog is important in order to make the muscle growth and to strengthen the tissues.
