Answer:
C. It formed the Great Lakes.
Explanation:
At the height of the last Ice Age, some 20,000 years ago, ice sheets in the northern hemisphere (Eurasia at the top, North America at the bottom) covered the largest area of the territory now known as North America. Scientists believe that the formation of the five Great Lakes was influenced by the movement of ice during the latest ice age.
The correct answer is -175 million years ago.
Pangaea was a supercontinent which was consisted of all the continental masses we know nowadays, just they were all merged into one very large land mass. This supercontinent started to form from the land masses that existed prior to it, and because of the tectonic activity they merged roughly around 335 million years ago. The continent existed during the Paleozoic era, as well as the early Mesozoic era.
With the breaking up of this continent because of the tectonic activity, it split initially into two large continents, Laurasia on the north, and Gondwanaland on the south. With the later break up, Laurasia split into Eurasia and North America, while Gondwanaland split into South America, India (which later moved towards Eurasia and merged with it), Antarctica, and Australia. The formation of the modern day continents also resulted in the formation of multiple oceans instead of one.
They can be replaced naturally.
Answer:
C Proportional measurement
Explanation:
Scales are used to represent proportional measurement. They are mostly used to represent the proportion of real life dimension to the figure on paper or a computer system.
By use of scale we can represent a large detail area with proportionate sizes on paper.
- Scales are used extensively in map making or cartography.
- Objects on map are usually represented proportionately with their dimension on the ground.
- There are different ways of representing a scale.
- There is relative fraction, statement scale and bar scale.
- An adept map reader should be able to translate between map and real life data.
Therefore, the correct choice is that scales represent proportional measurement.
