Answer:
a) The existence of the supercontinent Pangea led to a high degree of geographic uniqueness (endemism) among species during the Late Triassic. ==>FALSE
b) The Jurassic Period marks the time when dinosaurs began to dominate among terrestrial vertebrates. ==> TRUE
c) The scarcity of sediments from the Middle Jurassic may explain the apparent decrease in dinosaur diversity during this time. ==> TRUE
d) Mammals and dinosaurs co-existed throughout the Jurassic and Cretaceous Periods. ==>TRUE
e) The greatest leap in dinosaur diversity occurred during the Jurassic Period. ==> FALSE
f) There is a correlation between the rise of angiosperms and the diversity of herbivorous dinosaurs during the Cretaceous Period. ==> TRUE
g) There is a significant body of evidence suggesting that dinosaur evolution was responsible for the simultaneous evolution of angiosperms.==>FALSE
Answer:
B. Isostatic equilibrium
Explanation:
Isostasy is a state of balance or equilibrium between the lithospheric plate and the underlying mantle, the asthenosphere.
Due to the weight of the lithosphere, part of it sinks into the plastic asthenosphere and settles to an equilibrium position. This is what causes changes and differences in elevation on the earth.
As with all natural processes, the earth in itself tries to achieve stability and equilibrium in all it parts. The crust and a portion of the mantle forms the brittle lithosphere. The lithosphere floats on the plastic mantle. Due to density contrast, portions of the lithosphere tends to sink into the mantle from time to time. The lithosphere reaches a point where it no longer sinks and establishes an equilibrium with the asthenosphere.
This isostatic adjustment that occurs within the earth is responsible for the changes in elevations from places to places.
When portions of the crust gets eroded, it becomes lighter and rises up. When materials are deposited in adjacent areas or glaciers forms, they add increasing weight to the crust and causes it to further settle within the asthenosphere.
Answer:
Shilaidaha Kuthibadi (Bengali: শিলাইদহ) is a place in Kumarkhali Upazila of Kushtia District in Bangladesh. The place is famous for Kuthi Bari; a country house made by Dwarkanath Tagore. Rabindranath Tagore lived a part of life here and created some of his memorable poems while living here.
Explanation:
Which of the following is a factor that determines the composition of magma?<span>
C. Viscosity
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