Question

Write What did you learn about the origins of the on our planet? Use the regular verbs (0-60 words)

Escribir ¿Qué aprendiste sobre los orígenes del en nuestro planeta? Usa los verbos regulares (0-60 palabras)

Everything began. Pre- Cambrian: It started about 4.6 billion years ago.

The Earth was formed in the beginning of this era. The air was very toxic. The first one-celled living beings appeared, and then multicelled and more complex beings.

They lived in water.

Paleozoic: It was a time of great changes in the planet, and it is subdivided in six periods:

• Cambrian: First shellfish, primitive fish, corals, algae, and mollusks were dominant in the oceans.

• Ordovician: First land plants and initial fish appeared.

• Silurian: First insects emerged, and more plants were on land.

• Devonian: The first sharks appeared, as well as bony fish. Amphibians and spiders and the first terrestrial forests started colonizing land.

• Carboniferous: The first reptiles and insects with wings appeared on land.

• Permian: Diverse animal and plant life appeared; reptiles diversified. Then there was a mass extinction.
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Write What did you learn about the origins of the on our planet? Use the regular verbs (0-60 words)

Escribir ¿Qué aprendiste sobre los orígenes del en nuestro planeta? Usa los verbos regulares (0-60 palabras)

Everything began. Pre- Cambrian: It started about 4.6 billion years ago.

The Earth was formed in the beginning of this era. The air was very toxic. The first one-celled living beings appeared, and then multicelled and more complex beings. mencione 8 ideas sobre los orígenes de la vida en nuestro planeta usando verbos regulares en tiempo pasado simplexplicación :.

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Respuesta: Eescribir mencione 8 ideas sobre los orígenes de la vida