8th Science CBA 3 Review

Front

Buffelgrass is an invasive species of grass from Africa that outcompetes native Texas grasses for space and water. Which long-term change to a Texas grassland would most likely occur due to the introduction of buffelgrass?

Back

The population of native grasses will decrease.

Tags

TEK 8.11 A

Front

Which motion best demonstrates a solar eclipse?

Back

The moon moves between the sun and Earth, casting a shadow of the moon on Earth.

Tags

TEK 8.7 B

Front

Which statement provides the best evidence that human activities contribute to the negative impact on ocean food supplies? Options: Human visitors to coral reef systems break corals growing on rocks. Humans catch marine fish at a faster rate than the fish are able to reproduce. Humans raise fish in a hatchery for commercial sale. Humans construct artificial reefs to attract tourists.

Back

Humans catch marine fish at a faster rate than the fish are able to reproduce.

Tags

TEK 8.11 C

Front

Two plant species grow in the same area. Which statement best explains a difference between Plant 1 and Plant 2?

Back

Plant 1 obtains more water from the soil because of its root surface area and root depth.

Tags

TEK 8.11 A

Front

Which location around Green Peak is likely to experience the most erosion over time?

Back

Location Y, because location Y has the steepest slope

Front

Farmers can best reduce negative effects on the water quality of nearby streams and lakes by planting crops that —

Back

need less fertilizer

Tags

TEK 7.8 C

Front

The type of boundary where two plates are moving away from each other is a ________ boundary.

Back

Divergent

Tags

TEK 8.9 B

Front

The diagram shows the arrangement of electrons in a neon atom. How many protons are present in this atom's nucleus?

Back

10

Front

Physical characteristic most likely to describe a sample of sulfur (a nonmetal): a shiny appearance, brittleness, malleability, ductility.

Back

brittleness

Front

What is the best clue that a chemical reaction has taken place?

Back

Change in color