Which of the following is a warning sign of frequent rockfalls?
A) Talus
B) Moraine
C) Striations
D) Horn mountain

Which set of characteristics best describes igneous rock? a) largest type of rock, made of organic matter, hardest type of rock b) least abundant type of rock, made of other rocks, made mostly of minerals c) found on all continents, contains wavy bands of stripes, contains fossils d) most abundant type in earth's crust, made of magma/lava, contains no fossils

Mary is conducting an experiment on how pollution affects plant growth. how can she ensure that her data are reliable?

Which statement names the physical property of wood a. wood is softer than coal b. wood does not rust c. wood can rot d. wood can burn