The Cenozoic era is also referred to as the Age of Mammals, or Age of Birds, because mammals and birds dominated.
Answer:
Air pressure is the weight of air particles pressing down on the surface of the earth. Air pressure may be high or low. A high pressure system is associated with cooler temperatures and clear skies. A low pressure system is associated with warmer weather, storms or precipitation.
Barometer Measures: Air Pressure
Rain Gauge Measures: Precipitation
Answer:
1) mass and volume
2) float.
3) Sink
4) Apples
5) Cannonball
Explanation:
1) Density is based on the mass and volume of a material.
2) A material or an object with low density than water or liquid tends to float.
3) A material or an object with high density than water or liquid tends to sink.
4) The apples in the water have less density as they are floating in the water.
5) The cannonball is more dense than the ocean water and the ball sink in the less density water.
The density will become less, this is because thing with less density float to the top when things with more density float to the bottom. It also becomes colder.
Answer:
This question lacks some parts, it should read "Two or more different elements chemically combined make up a"
The answer is a COMPOUND
Explanation:
A compound is a type of pure substance that is formed as a result of the chemical combination of two or more different elements. During this combination, the atoms of the constituent elements are chemically joined together by CHEMICAL BONDS.
An example of a compound is CaCO3, which contains the following elements: Calcium, Carbon and Oxygen. In this compound, the atoms of the above listed elements are joined together by chemical bonds to form a COMPOUND.
