Answer:
Explanation:
Umm can you add an image?
Answer:
Option: a. 200 million years ago
Explanation:
Million years ago, Earth had one supercontinent called Pangaea and surrounded by an ocean (Panthalassa). Alfred Wegener proposed the concept of one big continent after putting together different records of confirmation. He was able to give his theory by examining fossils of plants, trees, animals, and reptiles that found in different continents. About 200 million years ago, the supercontinent began to split up into two parts; Gondwana from Laurasia. Today's countries, including Africa, Antarctica, India, South America, and Australia are part of Gondwana, where Europe and North America from Laurasia.
<span>
Earthquake-</span><span>a. measured on the Richter scale
</span><span>
Volcano-</span>b. lava comes out d. forms a mountain<span>
Both-c</span><span>. natural hazard
d. caused by subduction</span><span>e. occurs underwater
f. measured using a seismograph</span>
Rocks and minerals showed evidence of <u>oxidation</u> causes by the presence of oxygen in the air. In the second example, <u>organisms</u> actually created new rock after being dissolved in water or buried underground.
<h3>What is oxidation and fossilization?</h3>
Oxidation is the chemical reaction which usually takes place when a substance comes into contact with oxygen or another oxidizing substance.
Fossilization refers to the process of preserving the plant and animals remains in sedimentary rocks.
Oxidation also includes the other reactions as well in which electrons are lost.
Learn more about the oxidation and fossilization here:-
brainly.com/question/9029703
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