Summer is Coming! Join the Game of Timers Competition to Win Epic Prizes. Registration is Open. Game starts Mon July 1st.

 It is currently 18 Jul 2019, 14:43

GMAT Club Daily Prep

Thank you for using the timer - this advanced tool can estimate your performance and suggest more practice questions. We have subscribed you to Daily Prep Questions via email.

Customized
for You

we will pick new questions that match your level based on your Timer History

Track

every week, we’ll send you an estimated GMAT score based on your performance

Practice
Pays

we will pick new questions that match your level based on your Timer History

The life cycle of stars is on the order of billions of years, much lon

Author Message
TAGS:

Hide Tags

Manager
Joined: 26 Sep 2018
Posts: 60
Location: Sweden
The life cycle of stars is on the order of billions of years, much lon  [#permalink]

Show Tags

11 Jan 2019, 14:07
3
00:00

Difficulty:

95% (hard)

Question Stats:

26% (02:29) correct 74% (02:33) wrong based on 116 sessions

HideShow timer Statistics

The life cycle of stars is on the order of billions of years, much longer than a human life span or even the existence of astrophysics as a discipline. How do we understand the whole stellar life cycle? The Hertzsprung-Russell (HR) diagram sorts stars into different categories depending on their properties. Stellar clusters are collections of stars all the same age. The location of all the stars in a single stellar cluster on an HR diagram demonstrates the categories for stars at that particular age, and a comparison of plots on the HR diagram for multiple stellar clusters indicates how the different kinds of stars change over the course of their life cycles. The achievement is analogous to that of an imagined intelligent mayfly that, despite being alive for only a single day, is able to figure out the entire human life cycle by observing __________________.

Which of the following most logically completes the passage?
a. the students at a school that goes from kindergarten to the twelfth grade
b. a gathering of grandparents with their grandchildren
c. a college with reunions of all classes that graduated N years ago, where N is a multiple of five
d. the photos of a single living elderly individual, from early childhood to present day
e. a hospital with children and adult patients of all ages and a variety of conditions
Manager
Joined: 01 May 2017
Posts: 82
Location: India
The life cycle of stars is on the order of billions of years, much lon  [#permalink]

Show Tags

12 Jan 2019, 22:45
Let's analyse the points stated,
1) Life span of stars munch higher than the humans, still can we study the life cycle of the stars
2) Through HR diagram, where can study the life cycle of a star by grouping a collection of similar age and properties
3)Changes w.r.t to time over their life cycle can be studied using multiple Stellar clusters
4)Similarly can we study the human life cycle?

Which of the following most logically completes the passage?
a. the students at a school that goes from kindergarten to the twelfth grade - we have students of same properties i.e., capabilities but we can't study a life span just by looking at a specific period.
b. a gathering of grandparents with their grandchildren - We don't have all age group people, to study the life span
c. a college with reunions of all classes that graduated N years ago, where N is a multiple of five - In general we have people of same capabilities admitted into a college, and with almost similar age group. Single 'N' is generalized and multiple of 5 we can have collection of different age group and how they change over the period.
d. the photos of a single living elderly individual, from early childhood to present day - Based on a single person life, that to his current age not mentioned can't predict the complete human life cycle
e. a hospital with children and adult patients of all ages and a variety of conditions - Do patients at a hospital similar age and similar Kind grouped together to study the human life cycle NO
The life cycle of stars is on the order of billions of years, much lon   [#permalink] 12 Jan 2019, 22:45
Display posts from previous: Sort by