A social psychologist would be interested in how groups interact.
yep peers are people in the same age range as you who also share the same interests as you so the answer is :TRUE
Number 7 is b
Number 8 is a
Answer:
An increase in the volume of a substance while its mass remains the same. Expansion is usually due to heating. When substances are heated, the molecular bonds between their particles are weakened, and the particles move faster, causing the substance to expand.