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How does the seed of a gymnosperm differ from the seed of an angiosperm?

Which of the following represents the chemical reaction of hydrazine and hydrogen peroxide to produce nitrogen and water? a. nitrogen + hydrogen peroxide → hydrazine + water b. nitrogen + water → hydrazine + hydrogen peroxide c. hydrazine + hydrogen peroxide → nitrogen + water d. water + hydrogen peroxide → nitrogen + hydrazine

In this experiment, the was intentionally manipulated. it is the independent variable. the dependent variables that were measured were the

Identify the examples in which sam interacts only with natural resources