| Your Results | Global Average | |
|---|---|---|
| Questions | 5 | 5 |
| Correct | 0 | 3.42 |
| Score | 0% | 68% |
When two air masses meet and neither is displaced, what kind of front is present?
cold |
|
warm |
|
stationary |
|
occluded |
When two air masses meet and neither is displaced, a stationary front is created. Stationary fronts often cause persistent cloudy wet weather.
Which of the following is the correct order for types of radiation from lowest to highest frequency?
microwaves → radio waves → visible light |
|
infrared waves → microwaves → ultraviolet light |
|
visible light → ultraviolet light → radio waves |
|
radio waves → visible light → gamma rays |
The electromagnetic spectrum covers all possible wavelengths and frequencies of radiation. From lowest frequency (longest wavelength) to highest frequency (shortest wavelength) radiation: radio waves → microwaves → infrared waves → visible light → ultraviolet light → X-rays → gamma rays.
In the metric system, what prefix represents 103?
mega |
|
milli |
|
kilo |
|
centi |
Kilo is the metric system prefix for 103.
A subatomic particle that orbits the nucleus of an atom. It carries a negative electric charge. This desribes which of the following?
neutron |
|
isotope |
|
proton |
|
electron |
An electron is a subatomic particle that orbits the nucleus of an atom. It carries a negative electric charge. Generally, an atom has the same number of negative electrons orbiting the nucleus as it does positive protons inside.
Minerals, vitamins, and fiber are:
macronutrients |
|
proteins |
|
carbohydrates |
|
micronutrients |
Minterals, vitamins, and fiber are micronutrients while proteins, carbohydrates, and fats are macronutrients.