#1
Which geological era is known as the 'Age of Dinosaurs'?
Mesozoic Era
ExplanationMesozoic Era is known as the 'Age of Dinosaurs' due to the dominance of dinosaurs during this period.
#2
What is the term for a sudden and violent shaking of the ground caused by movements within the Earth's crust or volcanic action?
Earthquake
ExplanationAn earthquake is a sudden and violent shaking of the ground caused by movements within the Earth's crust or volcanic activity.
#3
What is the term for the process by which sedimentary rocks are formed through the compaction and cementation of sediment?
Lithification
ExplanationLithification is the process by which sedimentary rocks are formed through the compaction and cementation of sediment over time.
#4
What type of rock forms from the cooling and solidification of magma or lava?
Igneous rock
ExplanationIgneous rock forms from the cooling and solidification of magma or lava, undergoing crystallization to become a solid rock.
#5
What is the term for the process by which rocks are broken down into smaller fragments due to physical or chemical means?
Weathering
ExplanationWeathering is the process by which rocks are broken down into smaller fragments due to physical or chemical means, contributing to soil formation.
#6
Which of the following gases is believed to have been absent from Earth's early atmosphere?
Oxygen
ExplanationOxygen is believed to have been absent from Earth's early atmosphere, with other gases dominating the composition.
#7
What is the name of the supercontinent that existed during the Paleozoic and Mesozoic eras?
Pangaea
ExplanationPangaea was the supercontinent that existed during the Paleozoic and Mesozoic eras, before breaking apart into current continents.
#8
What is the term for the process by which one tectonic plate descends beneath another?
Subduction
ExplanationSubduction is the geological process where one tectonic plate descends beneath another at a convergent boundary.
#9
Which geological period saw the emergence of the first land plants?
Silurian Period
ExplanationThe Silurian Period saw the emergence of the first land plants in the history of Earth.
#10
Which geological phenomenon occurs when a glacier melts, leaving behind a depression that fills with water?
Kettle
ExplanationA kettle is a geological phenomenon where a depression is formed when a glacier melts and is later filled with water.
#11
During which era did the first mammals appear?
Cenozoic Era
ExplanationThe first mammals appeared during the Cenozoic Era, marking a significant evolution in the history of life on Earth.
#12
Which geological period marks the first appearance of multicellular life forms?
Cambrian Period
ExplanationThe Cambrian Period marks the first appearance of multicellular life forms in the fossil record.
#13
Which theory proposes that the continents were once joined together in a single landmass and have since drifted apart?
Continental drift theory
ExplanationContinental drift theory proposes that continents were once joined in a single landmass, later drifting apart over geological time.
#14
Which organism is considered to be one of the earliest known animals, appearing in the fossil record during the Ediacaran Period?
Anomalocaris
ExplanationAnomalocaris is considered one of the earliest known animals, appearing in the fossil record during the Ediacaran Period.
#15
Which era immediately preceded the Paleozoic Era?
Proterozoic Eon
ExplanationThe Proterozoic Eon immediately preceded the Paleozoic Era in the geological timescale.
#16
Which epoch is characterized by the rapid diversification and evolution of mammals, birds, and insects?
Eocene Epoch
ExplanationThe Eocene Epoch is characterized by the rapid diversification and evolution of mammals, birds, and insects.
#17
What is the term for the process by which one lithospheric plate slides beneath another at a convergent boundary?
Subduction
ExplanationSubduction is the geological process where one lithospheric plate slides beneath another at a convergent boundary.