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What is the main difference between protons and neutrons?
Protons have a much smaller mass than neutrons.
Protons have a much larger volume than neutrons.
Protons have an electrical charge, but neutrons have no charge.
Protons make up the nucleus, but neutrons orbit around the nucleus.

True.it is better to buy a washer with a higher efficiency rating

answer and explanation;

composition refers to both the types of minerals within a rock and the overall chemical makeup of the rock while texture refers to the size and arrangement of the minerals or grains that make up a rock. both composition and texture can be used to classify rocks, such as igneous rocks. texture describes how the rock became solid or crystallized from liquid, melted rock. composition of a rock describes the minerals that make up a particular rock.