Question 1:

Which era marks the appearance of the first complex, multicellular organisms?

Explanation: The Paleozoic Era marks the appearance of the first complex, multicellular organisms, including early fish, plants, and insects.

Question 2:

Which geological period is known as the "Age of Dinosaurs"?

Explanation: The Mesozoic Era includes the Jurassic and Cretaceous Periods, which are known as the "Age of Dinosaurs" when dinosaurs roamed the Earth.

Question 3:

What event marks the boundary between the Paleozoic and Mesozoic Eras?

Explanation: The boundary between the Paleozoic and Mesozoic Eras is marked by a mass extinction event known as the Permian-Triassic extinction, where a significant number of marine and terrestrial species went extinct.

Question 4:

Which era is characterized by the emergence and dominance of mammals?

Explanation: The Cenozoic Era is characterized by the emergence and dominance of mammals, including the evolution of humans.

Question 5:

What is the name of the earliest supercontinent that existed during the Precambrian Era?

Explanation: The earliest supercontinent that existed during the Precambrian Era is called Rodinia.