Please help if i don’t get this im gonna fail and it just doesn’t make sense to me i only need task two heating different amounts of substance

Which statement best describes the relationship between period and frequency of light waves? a) in wave b the period increases and the frequency decreases from wave a. b) in wave a the period increases and the frequency decreases from wave b. c) in wave b the period is shorter and the frequency is greater than in wave a. d) in wave a the period is shorter and the frequency is greater than in wave b.

Analyze how limestone is weathered and identify the features that are formed as a result of this dissolution

Anthracite is so hard and pure it is also referred to as a renewable resource metamorphic rock hot bituminous coal dirty fuel