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Question 1
A
Be sure to select an answer first to save it in the Error Log before revealing the correct answer (OA)!
Difficulty:
85%
(hard)
Question Stats:
30% (02:23) correct
70%
(02:21) wrong
based on 375
sessions
History
Date
Time
Result
Not Attempted Yet
Question 2
D
Be sure to select an answer first to save it in the Error Log before revealing the correct answer (OA)!
Difficulty:
55%
(hard)
Question Stats:
56% (01:17) correct 44%
(01:21) wrong
based on 324
sessions
History
Date
Time
Result
Not Attempted Yet
Scientists formerly believed that the rocky planets—Earth, Mercury, Venus, and Mars—were created by the rapid gravitational collapse of a dust cloud, a deflation giving rise to a dense observation. That view was challenged in the 1960s when studies of Moon craters revealed that these craters were caused by the impact of objects that were in great abundance about 4.5 billion years ago but whose number appeared to have quickly decreased shortly thereafter. This observation rejuvenated Otto Schmidt’s 1944 theory of accretion. According to this theory, cosmic dust gradually lumped into ever-larger conglomerates: particulates, gravel, small and then larger balls, planetesimals (tiny planets), and, ultimately, planets. As the planetesimals became larger, their numbers decreased. Consequently, the number of collisions between planetesimals decreased.
1. The passage provides evidence that Schmidt would be likely to disagree with the theory presented in the frst sentence over
I. the length of time it took for the rocky planets to form.
II. the most likely causes of the Moon’s impact craters.
III. the importance of cosmic dust as a seminal material in planetary formation.
A. I only
B. III only
C. I and II only
D. I and III only
E. II and III only
I. the length of time it took for the rocky planets to form.
II. the most likely causes of the Moon’s impact craters.
III. the importance of cosmic dust as a seminal material in planetary formation.
A. I only
B. III only
C. I and II only
D. I and III only
E. II and III only
2. Which of the following best describes the “observation” (line 6) referred to in the passage?
A. The rocky planets were created by the rapid gravitational collapse of a dust cloud.
B. Certain features on the Moon’s surface are impact craters caused by collisions with objects such as planetesimals.
C. The rocky planets were formed by a slow accretion of cosmic dust into increasingly larger bodies.
D. The number of objects colliding with the Moon appears to have been high for a while and then rapidly diminished.
E. Tere are far fewer planetesimals in existence today than there were about 4.5 billion years ago.
A. The rocky planets were created by the rapid gravitational collapse of a dust cloud.
B. Certain features on the Moon’s surface are impact craters caused by collisions with objects such as planetesimals.
C. The rocky planets were formed by a slow accretion of cosmic dust into increasingly larger bodies.
D. The number of objects colliding with the Moon appears to have been high for a while and then rapidly diminished.
E. Tere are far fewer planetesimals in existence today than there were about 4.5 billion years ago.
RC Butler 2022 - Practice Two RC Passages Everyday.
Passage # 284 Date: 15-Jul-2022
This question is a part of RC Butler 2022. Click here for Details
Passage # 284 Date: 15-Jul-2022
This question is a part of RC Butler 2022. Click here for Details
16 Jul 2022, 10:22
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1. The passage provides evidence that Schmidt would be likely to disagree with the theory presented in the first sentence over
I. the length of time it took for the rocky planets to form.
II. the most likely causes of the Moon’s impact craters.
III. the importance of cosmic dust as a seminal material in planetary formation.
B. III only-- Correct, As per the first sentence the rocky planets were formed by collapsing of dust cloud. But later Schmidt states that it is because of the formation of dust lumps. So his argument was around cosmic dust.
I. the length of time it took for the rocky planets to form.
II. the most likely causes of the Moon’s impact craters.
III. the importance of cosmic dust as a seminal material in planetary formation.
B. III only-- Correct, As per the first sentence the rocky planets were formed by collapsing of dust cloud. But later Schmidt states that it is because of the formation of dust lumps. So his argument was around cosmic dust.
