Question 1

Asian carp are fish that are not native to Tennessee. These fish are present in many rivers in the state. Adult Asian carp are very large and have few predators in Tennessee. The rivers on the map that are colored black show where Asian carp have been found in 2016.Many native fish, such as yellow perch, consume plankton in the rivers where they live. Asian carp also consume this food. 
Based on the information provided, yellow perch living in the Duck River most likely:

Accepted Answer

A. have greater competition for resources than yellow perch living in the Holston River.

Answer

D. have a greater number of predators than yellow perch living in the Mississippi

Answer

B. develop fewer illnesses than yellow perch living in the Cumberland River.

Answer

C. are better adapted to the environment than yellow perch living in the Tennessee River.

Question 2

A seaside community decides to build a barrier to reduce erosion and other damage to the beach ecosystem. The barrier needs to be able to withstand harsh winter winds and strong spring storms. Winds in the area usually produce a force between 3 and 10 newtons. Community leaders evaluate their options based on the strength and the cost of each barrier material and how often each material will need to be repaired or replaced.
Which material will be the best choice for building the barrier?

Accepted Answer

A. have greater competition for resources than yellow perch living in the Holston River.

Answer

B. develop fewer illnesses than yellow perch living in the Cumberland River.

Answer

C. are better adapted to the environment than yellow perch living in the Tennessee River.

Answer

D. have a greater number of predators than yellow perch living in the Mississippi River

Question 3

The picture shows a room with a ceiling fan and a fireplace. Heat from the fire warms the room. As fuel in the fireplace is burned, the fire gets smaller and then goes out. Then the air near the floor feels cooler. A person turns on the ceiling fan, and the air temperature near the floor begins to increase after the fan is
turned on.
Which of these best explains why the air temperature near the floor increases after the person turns on the fan?

Accepted Answer

C. The rotating fan pushes warm air that rose to the ceiling by convection back  down into the room.

Answer

D. Warm air from inside the room is drawn back into the fireplace when fan blades rotate.

Answer

B. The rotating fan causes warm air near the ceiling to move throughout the room by conduction.

Answer

A. Fires produce more thermal energy when fan blades rotate.

Question 4

Engineers have designed a hydrogen fuel cell car which is powered by the energy that is released when hydrogen and oxygen combine. To do this, the car's engine transforms chemical energy into mechanical energy. The only substance released from these cars is water vapor.
A student claims that cars powered by this type of fuel have an advantage over cars powered by gasoline. Which statement supports the student's claim?

Accepted Answer

A. Hydrogen fuel cell cars do not contribute to air pollution because their only exhaust is water.

Answer

C. Hydrogen fuel cell cars use non- renewable energy sources.

Answer

D. Hydrogen fuel cell cars can be designed in a variety of shapes.

Answer

B. Hydrogen fuel cell cars do not require maintenance like gasoline powered cars do.

Question 5

A student drew a diagram to illustrate convection currents in the atmosphere.
How should the diagram be changed to accurately illustrate atmospheric convection currents?

Accepted Answer

C. Add an arrow pointing up from the land to represent warm air rising and an arrow pointing down over the water to represent cool air sinking.

Answer

B. Add trees and bushes to the land to represent transpiration.

Answer

A. Add coral and fish to the water to represent energy flow.

Answer

D. Add an arrow pointing down over the land to represent cool air sinking and an arrow pointing up from the water to represent warm air rising.

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