. Fight-or-flight reactions include activation of the . adrenal medulla, a. leading to increased secretion of epinephrine parathyroid glands, b. leading to increased metabolic rate pancreas, c. leading to a reduction in the blood sugar concentration anterior pituitary gland, d. leading to cessation of gonadal function

adrenal medulla, leading to increased secretion of epinephrine

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weathering - colorado river carves land in arizona to form the grand canyon. cracks form in a sandstone wall surrounding a house. a marble statue near the science museum is changing color due to rainfall

erosion - after a rainstorm, soil and rock piees litter the roadways. the sand dunes in the sahara desert are changing shape.

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