Answer:
Explanation:
The nucleus of an atom contains neutrons and protons bonded tightly together. The same chemical element can have a different number of neutrons and still be the same element.
Answer:
The Battery Casing
Battery casing is manufactured in layers. The casing layers are developed from various raw materials and can include one or two, for example, polyethylene terephthalate layers, a polymer layer, and a polypropylene layer.
Explanation:
how many of these elements are found in some organisms but not at all?
SIX (6)
Substance A will sink because it is more dense than water. An object that is more dense than water will sink and an object that is less dense than water will float.
