ersc 1p01 midterm Question and
answers already passed
When a long pendulum hung from the ceiling of a tall building is made to
swing back and forth over a period of hours, the plane of oscillation appears to
rotate with time. This is because - correct answer ✔b. the Earth is rotating
around the Sun
Eratosthenes measured the angle of a shadow cast by a tower in Alexandria
at a time when a well in Aswan was fully illuminated by the Sun. Knowing the
distance between the two, this allowed him to determine: - correct answer
✔d. the circumference of the Earth
The commonest elements in our solar system are - correct answer ✔c.
hydrogen and helium
A red shift in the spectra of distant galaxies means that they are - correct
answer ✔b. moving away from us
Those planets in our solar system that are made mostly of volatile materials
(gas and "ice") include - correct answer ✔b. the Jovian planets
d. Saturn and Pluto
e. both b and d
The Earth's magnetic field is caused by - correct answer ✔e. Earth's metallic
core
The layer of Earth's atmosphere in which vertical circulation, convection and
clouds occur, and whose upper limit is higher than the world's tallest
, mountains but lower than the cruising height of commercial jets, is known as
the - correct answer ✔b. troposphere
Regarding the Earth's present atmosphere, oxygen makes up about - correct
answer ✔b. 21%
We know that the outer core of the Earth is liquid by - correct answer ✔a. the
S-wave shadow zone
The asthenosphere is - correct answer ✔c. part of the upper mantle
Continental drift was proposed by - correct answer ✔b. Alfred Wegener
Which fossil plant genus occurred in Australia and Antarctica and the southern
parts of South America, Africa and India, supporting the idea that these
continents were once all joined? - correct answer ✔b. Glossopteris
Which one of the following statements is TRUE? - correct answer ✔b.
Magnetite acquires a preferred magnetic alignment only at and below the
Curie Point temperature
Magnetic anomalies on the sea floor result from sea floor spreading in
conjunction with - correct answer ✔a. the repeated reversal of Earth's
magnetic polarity
With respect to sea-floor spreading, the Canadian J. Tuzo Wilson recognized
the importance of - correct answer ✔b. fracture zones at mid-ocean ridges
answers already passed
When a long pendulum hung from the ceiling of a tall building is made to
swing back and forth over a period of hours, the plane of oscillation appears to
rotate with time. This is because - correct answer ✔b. the Earth is rotating
around the Sun
Eratosthenes measured the angle of a shadow cast by a tower in Alexandria
at a time when a well in Aswan was fully illuminated by the Sun. Knowing the
distance between the two, this allowed him to determine: - correct answer
✔d. the circumference of the Earth
The commonest elements in our solar system are - correct answer ✔c.
hydrogen and helium
A red shift in the spectra of distant galaxies means that they are - correct
answer ✔b. moving away from us
Those planets in our solar system that are made mostly of volatile materials
(gas and "ice") include - correct answer ✔b. the Jovian planets
d. Saturn and Pluto
e. both b and d
The Earth's magnetic field is caused by - correct answer ✔e. Earth's metallic
core
The layer of Earth's atmosphere in which vertical circulation, convection and
clouds occur, and whose upper limit is higher than the world's tallest
, mountains but lower than the cruising height of commercial jets, is known as
the - correct answer ✔b. troposphere
Regarding the Earth's present atmosphere, oxygen makes up about - correct
answer ✔b. 21%
We know that the outer core of the Earth is liquid by - correct answer ✔a. the
S-wave shadow zone
The asthenosphere is - correct answer ✔c. part of the upper mantle
Continental drift was proposed by - correct answer ✔b. Alfred Wegener
Which fossil plant genus occurred in Australia and Antarctica and the southern
parts of South America, Africa and India, supporting the idea that these
continents were once all joined? - correct answer ✔b. Glossopteris
Which one of the following statements is TRUE? - correct answer ✔b.
Magnetite acquires a preferred magnetic alignment only at and below the
Curie Point temperature
Magnetic anomalies on the sea floor result from sea floor spreading in
conjunction with - correct answer ✔a. the repeated reversal of Earth's
magnetic polarity
With respect to sea-floor spreading, the Canadian J. Tuzo Wilson recognized
the importance of - correct answer ✔b. fracture zones at mid-ocean ridges
