Glacial striations have been found in South America, South Africa, India, and Australia. What do these marks tell scientist?

that these areas have not seen much of a change in climate over the years

that these areas were once home to plants and animals that do not live there today

that these areas were once much colder than they are today

that these areas were once much warmer than they are today

These marks tell scientist that these areas were once much colder than they are today.

Option: C

Explanation:

Climate has changed in large scale through out the geolological history. Once all the continents were grouped together according to the continental drift theory. Thereafter with the effect of gravitational force and tidal force all continents divided and moved towards equator wards and west wards in definite directions.

So the present climatic condition what we see now in different continent is not their actual characteristics from beginning. Therefore South America, South Africa, India and Australia all these countries were under severe cold climate once that's why they have glacial striation.

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