| Your Results | Global Average | |
|---|---|---|
| Questions | 5 | 5 |
| Correct | 0 | 3.50 |
| Score | 0% | 70% |
Minerals, vitamins, and fiber are:
proteins |
|
micronutrients |
|
macronutrients |
|
carbohydrates |
Minterals, vitamins, and fiber are micronutrients while proteins, carbohydrates, and fats are macronutrients.
Changes to an object's speed or direction of motion are caused by which of the following?
kinetic energy |
|
a force |
|
work |
|
power |
Force is applied to change an object's speed or direction of motion.
The heat from the Sun traveling to Earth is an example of which of the following?
electricity |
|
conduction |
|
convection |
|
radiation |
Radiation occurs when electromagnetic waves transmit heat. An example is the heat from the Sun as it travels to Earth.
An asteroid belt holds many of the asteroids in our solar system. It is located between the orbits of which planets?
Mercury and Venus |
|
Mars and Earth |
|
Jupiter and Saturn |
|
Mars and Jupiter |
The solar system also contains over a million rocky fragments of at least 1km in diameter called asteroids as well as millions more with smaller diameters. Many of these asteroids are an asteroid belt between the orbits of Mars and Jupiter.
The ozone layer is in which of Earth's atmospheric layers?
thermosphere |
|
troposphere |
|
mesosphere |
|
stratosphere |
The stratosphere is just above the troposphere and is stratified in temperature with warmer layers higher and cooler layers closer to Earth. This increase in temperature is a result of absorption of the Sun's radiation by the ozone layer.