Composting Crossword Puzzle

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QUESTIONS LIST: environment: the natural world of land, water, air, plants, and animals, biodegradable: material that is able to be readily decomposed or broken down by biological means, especially bacterial action, compost: organic matter that has been decomposed by microorganisms, decompose: to break down, change form, humus: the stable organic complex that remains after plant and animal residues have decomposed in soil or compost, landfill: a method of solid waste disposal in which refuse is buried between layers of dirt to fill in or reclaim low-lying ground, nitrogen: an element most living things consume as food; found in the air we breathe and in all living tissue, nutrients: materials a body gets from food to use for energy, growth, and repair; present in compost-rich soil, organic: related to food production without chemical fertilizer, soil: top layer of earth's surface, ph: the degree of acidity or alkalinity of a substance, vermi compost: composting using worms, aerobic: in the presence of oxygen, anaerobic: in the absence of oxygen, bacteria: single-celled microscopic organism