March 8th EOG Review

Which best describes the sequence of elements in Period 5 of the periodic table? (look at the periodic table)

• a. highly reactive gases, non reactive metals, metalloids, non reactive gases and non reactive metals

• b. highly reactive metals, relatively non reactive metals, metalloids, reactive non metals, non reactive gases

• c. non reactive gases, metalloids, non reactive metals, highly reactive metals, highly reactive gases

• d. non reactive gases, non reactive metals, highly reactive metals, metalloids, reactive non metals, reactive gases

23. Which statement is true about a chemical reaction?

• a. the physical states of the atoms in the reactants determine the products

• b. some of the atoms in the reactants will be part of the products

• c. the number of atoms in the reactants determines the products

• d. all of the atoms in the reactants will be part of the products

24. Which are the most responsible for creating acid rain pollution?

• a. nuclear power plants

• b. coal-burning power plants

• c. hydroelectric power plants

• d. wood burning power plants

26. Which best explains why all of Earth's freshwater is not available for human use?

• a. most of Earth's freshwater is only in lakes

• b. most of Earth's freshwater is underground

• c. most of Earth's freshwater is still in the water cycle

• d. Most of Earth's freshwater is frozen water

27. How can upwellings improve fishing for ocean fisherman?

• a. they cause the ocean to get warmer

• b. they cause ocean currents to remain calm

• c. they bring nutrients from the cold, deep ocean waters

• d. they bring ocean water from the equator

28. If the lake has excess levels of phosphates and nitrates in the water, what will most likely result?

• a. the temperature of the lake will decrease

• b. the trubidity of the lake will decrease

• c. the dissolved oxygen levels in the lake will increase

• d. the growth of algae in the lake will increase

29. Which is the most accurate way scientists use to predict the age of the Earth?

• a. relative dating of rock layers

• b. radioactive dating of rocks

• c. comparing ages of different fossils

• d. investigating core samples from the Antarctic

30. Which is the best reason for scientists to study ice cores obtained from Earth's ice caps?

• a. to evaluate potential drilling sites

• b. to study the quality of water stored in glaciers

• c. to determine the rate of melting in polar regions

• d. to study past climates by analyzing trapped gases and particles