SaiBook.us Reading

Home Course Section

Schedule Admission Social

Lesson Example Discussion Quiz: Class Homework

Step-3

Title: Short passage

Grade: 8-a Lesson: S2-L3

Explanation: Hello Students, time to practice and review the answers.

Description:

Step	Type	Explanation	Answer
1	Problem	A student has taken the following notes: • In North America, woodlands have expanded into areas that were once grasslands. • Thomas Rogers and F. Leland Russell of Wichita State University investigated whether woodland expansion is related to changes in climate. • Rogers and Russell analyzed core samples from oak trees on a site that was not wooded in the past and indexed the age of the trees with historical climate data to see if tree populations and climate were correlated. • Tree population growth was associated with dry intervals. • Droughts may have played a role in woodland expansion. The student wants to emphasize the objective of the study. Which of option among the following is most effective?
2	Clue	The main idea of the passage is analyzed and interpreted.
3	Hint	The details and facts help to draw the main idea of the passage.

Step

Type

Explanation

Answer

Problem

A student has taken the following notes: • In North America, woodlands have expanded into areas that were once grasslands. • Thomas Rogers and F. Leland Russell of Wichita State University investigated whether woodland expansion is related to changes in climate. • Rogers and Russell analyzed core samples from oak trees on a site that was not wooded in the past and indexed the age of the trees with historical climate data to see if tree populations and climate were correlated. • Tree population growth was associated with dry intervals. • Droughts may have played a role in woodland expansion.

The student wants to emphasize the objective of the study. Which of option among the following is most effective?

Clue

The main idea of the passage is analyzed and interpreted.

Hint

The details and facts help to draw the main idea of the passage.