Q: Which is a reason for Arkansas having multiple seasons? OPTIONS:
- the tilt of Earth's axis
- the speed of Earth's orbit
- Earth's distance from the Sun
- Earth gravitational pull toward the Moon
A: the tilt of Earth's axis

The main function of hormones in the human body is to
OPTIONS:
- identify and destroy microbes
- regulate body functions
- transport blood to cells
- store energy

regulate body functions

Q: Mr. Jenkins constructed a circuit consisting of a variable source, wires, and a resistor. In order to triple the amount of current, how should he change the voltage of the source? ---- OPTIONS:
- make the voltage three times larger
- make the voltage one-third as great
- make the voltage nine times larger
- make the voltage one-ninth as great

A: make the voltage three times larger

This in turn causes the average temperature on Earth to rise. Which of the following observations supports that theory?
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OPTIONS:
- The summer of 1998 was one of the hottest summer seasons on record.
- Carbon dioxide gas from cars and industry is a product of burning that produces heat.
- Carbon dioxide in the upper atmosphere absorbs and re-emits heat radiated from Earth's surface.
- Radiation on Earth's surface is increasing because of a hole in the ozone layers.

Carbon dioxide in the upper atmosphere absorbs and re-emits heat radiated from Earth's surface.

Question:
A company is designing a new laptop computer. The computer must not exceed a certain weight. Which of the following is the most likely reason to have a weight restriction for the computer?
OPTIONS:
- to make it easier to test the prototype
- to reduce the cost of making the computer
- to make it easier to transport the computer
- to reduce the cost of building the prototype
Answer:
to make it easier to transport the computer

Q: What kingdom contains organisms that are multicellular, have no chlorophyll, and absorb nutrients from decaying tissue? OPTIONS:
- Fungi
- Plantae
- Protista
- Animalia
A:
Fungi