Both petroleum and coal are made up of complex carbon-based molecules, and both originated with living creatures of some kind. both are vital sources of energy for the modern world and both were formed by geologic processes over millions of years. however, petroleum was mainly formed from the remains of ocean-dwelling microorganisms. coal, on the other hand, originated from decayed vegetation in ancient swamps and bogs. in any case, it took millions of years for both coal and oil to be produced. this is the case because it took that much time for overlying sediments to produce the unimaginable heat and pressure that would one day allow us to harvest these energy resources. what is one clue word or phrase in the passage that indicates a contrast? a. however b. both c. because d. in any case

Read this student's rough draft. i know it doesn't sound like much, but am psyched about the school fundraiser this spring. we are sponsoring a slam-dunk contest (on an eight-foot rim) for local middle schoolers. we're charging an entry fee for participants that will cover our costs, and we’ll charge admission at the door! three dollars per person—ka-ching! six of my neighbors have already said they are coming. i mean, who wouldn't come? participants will wear their school jerseys, and all their friends will come to cheer! which concluding sentence best reflects the writer's voice? the contest will take place in the liberty middle school gym, and the maximum capacity is 250 spectators. the contest promises to enrich our community as a variety of schools unite to support our fundraising effort. it will be sweet, because the band is providing music in the stands, and the dance squad is performing. students’ enthusiasm for this endeavor has blossomed, and it will reach full flower as the contest approaches