What is the major cause of species extinction today?

Human activity and habitat degradation

What is a keystone species?

A species that can cause a cascade of extinction if removed

A species that is the most common in an ecosystem

A species that is the largest in an ecosystem

A species that is the fastest growing in an ecosystem

What does the term "intensity" in agriculture refer to?

How much food is grown per hectare or acre of land

The number of crops grown per year

The amount of water used in farming

The type of machinery used in farming

What is a clear indication that the use of a resource is not sustainable?

Rapid depletion of the resource

Constant availability of the resource

What is the impact of larger populations on resource consumption?

No change in resource consumption

What has been the trend in global temperatures over the past 130 years?

Fluctuated but overall increase

What is the first step in the scientific method?

Test the hypothesis with an experiment.

What is the purpose of having a control group in an experiment?

To provide a basis for comparison.

To manipulate the experimental variable.

To ensure the experiment is valid.

What is an observational experiment?

An experiment conducted by observing phenomena without interference.

An experiment where the researcher manipulates variables.

An experiment conducted in a laboratory setting.

An experiment that always involves a control group.

Why is it important to have a large sample size in an experiment?

To make the data more representative of the entire population.

To ensure the experiment is completed quickly.

To reduce the cost of the experiment.

To simplify the analysis of results.

What is the hypothesis posed by the environmental scientist in the example?

Reducing the size of the natural area will result in a significant loss in small mammal and shrub species.

Increasing the size of the natural area will increase species diversity.

The size of the natural area does not affect species diversity.

Increasing the number of housing developments will increase species diversity.

What is the experimental variable in the example provided?

The reduction of habitat size from ten hectares to one hectare.

The number of housing developments.

The type of species being studied.

The time of year the study is conducted.

Why is repetition important in scientific research according to the text?

It allows scientists to trust that the observed phenomenon is real and significant.

It helps scientists to publish more papers.

It reduces the cost of experiments.

It ensures that all scientists agree on the results.

What does the text suggest about scientific laws?

They are considered not disproven, but can change with new information.

They are always proven and never change.

They are considered disproven if new information arises.

They are only valid for a short period.

What must investigators demonstrate to identify a cause-and-effect relationship?

A distinct difference between groups

Pentathlon - Section 1, Part 1 Quiz

Authored by Sarah Malec

Science

7th Grade

NGSS covered

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43 questions

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MULTIPLE CHOICE QUESTION

5 mins • 1 pt

What is environmental science primarily concerned with?

The study of weather patterns

The impacts of human activities on environmental systems

The history of the Earth

The development of new technologies

Tags

NGSS.MS-ESS3-4

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

Which of the following is an example of a large-scale human activity affecting the environment?

Reading a book

Clearing land for agriculture

Walking in a park

Painting a picture

Tags

NGSS.MS-ESS3-4

NGSS.MS-ESS3-3

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

What does the term "environment" refer to in environmental science?

Only the weather conditions

The sum total of all conditions and living and nonliving factors

Just the local wildlife

Only the air quality

Tags

NGSS.MS-ESS3-4

NGSS.MS-LS2-3

NGSS.MS-ESS2-1

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

Environmental science is described as what type of discipline?

Historical

Artistic

Science-based

Literary

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

What is a "system" in the context of environmental science?

A set of unrelated components

A set of living and/or nonliving components connected in a way that changes in one part affect other parts

A single organism

A random collection of objects

Tags

NGSS.MS-LS2-3

NGSS.MS-ESS2-1

NGSS.MS-LS2-4

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

What is an environmental indicator?

A measure that reflects the environmental health of a system

A tool to measure human health

A device to predict weather changes

A method to calculate economic growth

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

What is the definition of a species according to the document?

A group of organisms with similar dietary habits

A group of organisms distinct in morphology, physiology, or biochemical properties

A group of organisms living in the same habitat

A group of organisms with the same lifespan

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Pentathlon - Section 1, Part 1 Quiz

What is environmental science primarily concerned with?

Which of the following is an example of a large-scale human activity affecting the environment?

What does the term "environment" refer to in environmental science?

Environmental science is described as what type of discipline?

What is a "system" in the context of environmental science?

What is an environmental indicator?

What is the definition of a species according to the document?

Approximately how many known species are there on Earth?

What percentage of species that have ever lived on Earth are now extinct?

What is the major cause of species extinction today?

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