Which of the following is TRUE about the water cycle? I. Evaporation occurs when liquid water becomes a gas (water vapor). Transpiration is basically evaporation from living things such as plants.

II. Condensation occurs when water vapor becomes liquid, forming clouds.

III. Rain and snow are examples of precipitation. Runoff occurs as a result of precipitation.

IV. Bacteria are very important to the water cycle.

Use the phylogenetic tree to the right to determine which statement below is true. organisms a and f are not related. organism e is more closely related to organism b than organism f. organisms c and d are more closely related than organisms a and b. phylogenetic trees

What factors contribute to the effect an environmental toxin has on the human body?

Graded assignment lab report answer the questions below. which combinations of substances resulted in a chemical change? for each metal that participated in a chemical change, write the type of metal it is, based on your examination of the periodic table. were there any metallic compounds that did not react with either the acid or the base? write the type of metal, based on your examination of the periodic table. make a general statement about the reactivity of the metals in this experiment.