One way to improve energy return and reduce the amount of greenhouse gases typically released by traditional monoculture fuel crops is to use lihd grassland plants. what does lihd stand for?

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the principles and empirical processes of discovery and demonstration considered characteristic of or necessary for scientific investigation, generally involving the observation of phenomena, the formulation of a hypothesis concerning the phenomena, experimentation to test the hypothesis, and development of a conclusion that confirms, rejects, or modifies the hypothesis.