| Your Results | Global Average | |
|---|---|---|
| Questions | 5 | 5 |
| Correct | 0 | 3.17 |
| Score | 0% | 63% |
"For every action, there is an equal and opposite reaction." This describes which of Newton's laws of motion?
second |
|
fourth |
|
third |
|
first |
Newton's third law of motion states that For every action, there is an equal and opposite reaction. When an object exerts a force on another object, the second object exerts a force of equal magnitude in the opposite direction on the first object.
The first step in the water cycle is:
reclamation |
|
infiltration |
|
precipitation |
|
evaporation |
The water (hydrologic) cycle describes the movement of water from Earth through the atmosphere and back to Earth. The cycle starts when water evaporates into a gas from bodies of water like rivers, lakes and oceans or transpirates from the leaves of plants.
As part of digestion, the liver produces bile which breaks down:
starches |
|
protein |
|
sugars |
|
fat |
The liver produces bile which emulsifies (separates) fat.
An asteroid belt holds many of the asteroids in our solar system. It is located between the orbits of which planets?
Jupiter and Saturn |
|
Mercury and Venus |
|
Mars and Jupiter |
|
Mars and Earth |
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.
Someone who has Rh-factor __________ blood cannot receive blood with a __________ type.
antigen, negative |
|
positive, antigen |
|
positive, negative |
|
negative, positive |
Blood transfer is limited by the type and Rh factor of the blood. Someone who has Rh-factor negative blood cannot receive blood with a positive type but a person with Rh-factor positive type blood can receive Rh-negative blood. Type O negative blood is the universal donor because it can be given to a person with any blood type. Type AB positive is the universal recipient meaning someone with this blood type can receive any other type of blood.