Answer:
The Geologic Time Scale is a system of chronological measurements that relates to the study of rock and layers.
While the human time scale is the portion of the pedogenic time scale that covers periods of centuries, decades, or less.
Explanation:
<u>Answer:
</u>
The build-up of three oxygen created our ozone layer around two billion years ago.
<u>Explanation:
</u>
- The ozone layer is a part of the stratosphere which is located right after the troposphere in the atmosphere of the Earth.
- The ozone gas is made up of the abundance of three oxygen molecules combining with the ultraviolet radiation emitted by the Sun.
- The development of the ozone layer happened around two billion years ago when the oxygen concentration levels on the planet began to rise slowly and gradually.
The correct answer is - at the low left part of the map.
The maps have multiple elements, and one of those elements is the scale. The scale can be found on the lower part on the map, on the left side. It serves to give us the information about the distance on the map, in comparison to the actual distance in reality. This information can be shown either as unit to unit, or as measurement to measurement.
Example:
1:100,000
This means that one unit on the map, will be equal to 100,000 same units in actual distance. So 1 cm on the map, will be 100,000 cm in real life.
