What is the best description of Ediacaran metazoans?

Soft-bodied multicellular animals

Which of the following is likely to have caused an increase in stratospheric ozone?

Implementing the Montreal protocol

Which of the following is true according to the convection current hypothesis of plate motion?

Upwelling in the mantle pushes plates apart.

Which group of fossils is most likely to be found in a Cambrian shale bed?

Brachiopod, trilobite, algae, fish

What is the Plate Tectonic Super-Cycle?

Ongoing cycle of formation and breakup of supercontinents

What role does the Earth's surface play in global warming?

It absorbs the sun's energy and radiates infrared energy

The relationship between changes in past environments and fossil life forms allow scientists to

Predict impact of environmental changes on modern life forms

The likely cause of an explosive radiation of new species following a mass extinction event.

A significant amount of environmental change

Why are most Australian soils less fertile than those on other continents?

Most of the continent is very old and tectonically stable

What would be the most effective way of reversing the water quality in the Murray-Darling Basin

Increase environmental flows in the Murray River

The evolutionary development that allowed animals to survive in terrestrial environments

An ability to minimise water loss

Why was atmospheric ozone important for the evolution of early life?

Reduced intensity of UV radiation reaching Earth's surface.

How do fossils provide evidence that supports the theory of evolution by natural selection?

Can be compared to show similarities between species.

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Earth and Environmental Science HSC Multiple Choice Questions

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Answers

1
What is the best description of Ediacaran metazoans?
Simple single-celled organisms
Primitive photosynthetic organisms
Soft-bodied multicellular animals
Animals with hardened body parts
2
Which of the following is likely to have caused an increase in stratospheric ozone?
Implementing the Kyoto protocol
Developing more efficient engines
Implementing the Montreal protocol
Using more nuclear power
3
Which of the following is true according to the convection current hypothesis of plate motion?
Upwelling in the mantle pushes plates apart.
Down-welling in the mantle causes transform faults.
Hot spots in the mantle cause lithospheric thickening.
Colder regions in the mantle attract plates
4
Which group of fossils is most likely to be found in a Cambrian shale bed?
Insect, coral, flower, brachiopod
Brachiopod, trilobite, algae, fish
Fish, stromatolite, dinosaur bone, jellyfish
Bacteria, fern, jellyfish, worm
5
What is the Plate Tectonic Super-Cycle?
Ongoing cycle of formation and breakup of supercontinents
recycling of lithospheric plates at convergent boundaries
Regular cyclic motion of supercontinents around the equator
Cyclic pattern in the rate of motion of two divergent plates
6
What role does the Earth's surface play in global warming?
It reflects all of the sun's energy reaching the surface
It absorbs the sun's energy and radiated UV energy
Absorbs sun's energy; keeps temp of the Earth crust constant
It absorbs the sun's energy and radiates infrared energy
7
The relationship between changes in past environments and fossil life forms allow scientists to
Implement strategies to stop environmental change
Implement scientific procedures
Predict the future life forms that will evolve
Predict impact of environmental changes on modern life forms
8
Which of the following ratios is used to determine the existence of early life on Earth?
Carbon-14 to Nitrogen-14
Oxygen-18 to Oxygen-16
Carbon-14 to Carbon-12
Carbon-13 to Carbon-12
9
Which of the following is the oldest life form?
Single-celled animals
Cyanobacteria
Ediacaran metazoans
Algae
10
Which volcanic material contributes most to a decrease in global temperatures?
Carbon dioxide
Sulfur dioxide
Water vapour
Radon
11
The likely cause of an explosive radiation of new species following a mass extinction event.
The mutation of DNA
Increased competition between organisms
A significant amount of environmental change
Depletion of the ozone layer
12
Why are most Australian soils less fertile than those on other continents?
Most soils form by the slow weathering of lateritic rocks
Most of the continent is very old and tectonically stable
Most Australian soils have been intensively farmed.
Australia's low mountains contribute to significant rainfall
13
What is the major cause of earthquakes that occur on the Australian continent?
Intra-plate stress
Thermal uplifting and rifting
Continental volcanic activity
Stress at convergent plate boundaries
14
What statement best describes the growth of the Australian continent over time?
South to north
North to south
West to east
East to west
15
What advantage did the terrestrial environment offer vertebrates of the Devonian Period?
Less exposure to UV radiation
Greater variety of land plants
Less competition for resources
Greater variation in temperature
16
What is the most common rock type found in oceanic crust?
Basalt
Limestone
Granite
Mudstone
17
What would be the most effective way of reversing the water quality in the Murray-Darling Basin
Increase environmental flows in the Murray River
Grant more irrigation licences
Plant more trees
Increase the number of artesian bores near the Murray River
18
The evolutionary development that allowed animals to survive in terrestrial environments
An internal skeleton for support
An ability to minimise water loss
An ability to regulate body temperature
An efficient circulatory system
19
Why was atmospheric ozone important for the evolution of early life?
Led to an increase in the oxygen conc of the atmosphere
Reduced intensity of UV radiation reaching Earth's surface.
Led to a decrease in the oxygen conc of the atmosphere
Reduced the intensity of infrared radiation reaching surface
20
How do fossils provide evidence that supports the theory of evolution by natural selection?
Can be dated to determine an absolute age.
Can be compared to show similarities between species.
Can be analysed to interpret competition between species.
Can be mapped to indicate the distribution of each species.

Earth and Environmental Science HSC Multiple Choice Questions Flashcards | StudBud