Mass extinctions

Mass extinctions

6th Grade

9 Qs

quiz-placeholder

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Mass extinctions

Mass extinctions

Assessment

Quiz

English

6th Grade

Practice Problem

Easy

Created by

Tian Pu

Used 2+ times

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9 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

According to paragraph 5, who first suggested the asteroid-impact hypothesis?

Luis and Walter Alvarez

A group of geologists from Haiti

Researchers at the Chicxulub site

Two scientists from Mexico

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

According to paragraph 5, what caused the decline in plant life according to the asteroid-impact hypothesis?

Animals ate too many plants

The explosion destroyed forests

The darkened sky reduced photosynthesis

Water pollution from the asteroid

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

According to paragraph 5, what does the hypothesis suggest about the speed of the extinction event?

It happened very slowly

It lasted for hundreds of years

It didn’t lead to any real extinction

It happened very suddenly

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

According to paragraph 6, why is iridium important to the asteroid-impact hypothesis?

It is rare on Earth but common in asteroids

It helps plants grow faster

It is used to build telescopes

It is found only in ocean rocks

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

According to paragraph 6, what does the sudden rise in iridium in sediments suggest?

Volcanoes released the iridium

The asteroid impact spread iridium around the world

Iridium was used in farming

The Earth’s crust became richer in metals

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

According to paragraph 6, what is surprising about the evidence found?

Iridium is easy to find in all places

Iridium is more common in plants

Iridium is rare on Earth but found in the sediments

Iridium is used in farming

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

According to paragraph 7, what would an asteroid impact create?

A. A huge crater and signs of heat damage

B. A change in Earth’s orbit

C. Large earthquakes and floods

D. New types of animals

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