Ms. Brown wanted to see if giving her students chocolate before tests helped them get better scores. She divided her class randomly into two groups. Group A was given chocolate right before their test and Group B was given nothing before the test. The test average for Group A was 85% and the test average for Groups B was 64%. What is the independent variable? A. Group A
B. Group B
C. Chocolate
D. Ms. Brown

group A

Explanation:

An independent variable is a variable in a functional relation wherein the value is not affected by other variables. That is in contrast to a dependent variable that is influenced by other variables. independent variable science definition: the variable in a functional relation wherein the value is independent.

metamorphism is the change of minerals or geologic texture (distinct arrangement of minerals) in pre-existing rocks (protoliths), without the protolith melting into liquid magma (a solid-state change). the change occurs primarily due to heat, pressure, and the introduction of chemically active fluids. i hoped i !

that would be called plucking : )

explanation:

''plucking, also referred to as quarrying, is a glacial phenomenon that is responsible for the erosion and transportation of individual pieces of bedrock, especially large "joint blocks". as a glacier moves down a valley, friction causes the basal ice of the glacier to melt and infiltrate joints (cracks) in the bedrock."