Cumulative Exam — Cumulative exam Answers

What is the most likely effect a decrease of plant life in the biosphere would have on the atmosphere?a.A decrease in plant life would have no effect on the atmosphere.b.A decrease in plant life would cause carbon dioxide levels to increase and oxygen levels to decrease.c.A decrease in plant life would cause carbon dioxide levels to decrease and oxygen levels to increase.d.A decrease in plant life would cause an increase in all gases in the atmosphere.

Early land animals had gills as well as lungs.

The Pacific Plate is located under the Pacific Ocean. Its movement has created the Island Arc and the Ring of Fire. This plate demonstrates ____________. Please select the best answer from the choices provided.

During an earthquake, seismic waves move outward from the focus in all directions.

Samuel puts a pot of water on the stove to boil and remembers when his teacher taught the class about convection, which is fluid movement driven by heat. Samuel recalls that convection in the Earth’s mantle involves the movement of

Phobos orbits Mars in 27,553 s at a distance of 9.378 × 106 m. What is the mass of Mars?

Geologic events that occurred during the Paleozoic Era include mountain building and volcanic activity.

Please select the word from the list that best fits the definition

Which disturbance would result in primary succession?

A green dot in the middle of 4 concentric circles. The first away from the green dot is labeled n = 1. The second circle away from the green dot is labeled n = 2. The third circle away from the green dot is labeled n = 3 and the last is labeled n = 4. There is an arrow from n = 4 to n = 1 labeled A. There is an arrow from n = 3 to n = 2 labeled B. There is an arrow from n = 3 to n = 1 labeled C. There is an arrow from n = 2 to n = 1 labeled D.