[Solved] Direct controls are generally much more costly than emissions taxes because A)under direct controls emissions cutbacks are usually not apportioned among the firms on the basis of their ability to reduce pollution cheaply and efficiently. B)emissions tax per unit of output is higher than the per-unit direct control program cost. C)government cannot legally levy emissions taxes that are as high. D)firms disregard emissions taxes. Terrestrial Life: Organisms that live and thrive on land, as opposed to in water or air. Land Plants: A large group of terrestrial plants, including bryophytes, ferns, and seed plants, that are key contributors to terrestrial ecosystems and the global oxygen cycle. Megafossils: Large fossilized remains or impressions of plants or animals visible to the naked eye, used in the study of paleontology. Paleontologist: A scientist who studies fossils to understand the history of life on Earth, including the evolution of plants and animals.