Lesson 5-Effects of climate change

Question 1

_____________________is described as an increase in global
average temperature. This increase in the average temperature of the
atmosphere and oceans is the largest single indicator of climate
change.

Answer 1

Global warming

Question 2

An overall reduction in Earth’s ice cover will result in _________________________and will also impact the habitats of animals such as
seals and polar bears.

Answer 2

higher sea levels

Question 3

With less ice, polar bears must ________________
_____________________________________________________

Answer 3

swim longer distances to reach food and safety

Question 4

Ocean levels could rise
by ___________within
the next 100 years.

Answer 4

20cm to 40 cm

Question 5

Due to increased levels of dissolved
carbon dioxide, there is an increase
of _________________. Changes in
sea water pH could negatively affect
the ecosystems.

Answer 5

acidity

Question 6

Risks of disease and infection and the chances of accidental death due
to _______________________(heat waves, floods, tornadoes,
lightning strikes, hurricanes, and snowstorms) are closely connected
to climate change.

Answer 6

extreme weather

Question 7

Outbreaks of disease spread by
animals usually ___________
during periods of higher
temperatures.

Answer 7

increase

Question 8

Changes in heat distribution over Earth’s surface have led to changes
in __________________. The speed, frequency, and direction of
winds have been fluctuating unpredictably.

Answer 8

wind patterns

Question 9

As average temperatures
have increased,
____________________
have changed throughout
Canada. As shown on the
right, precipitation levels
have increased or
decreased depending on
the region. Overall,
precipitation in Canada
has _______________.

Answer 9

precipitation patterns

increased

In the north there is more precipitation in canada

Question 10

__________________ is the process by which land slowly dries out
until little or no vegetation can survive and the land becomes a desert.

Answer 10

Desertification

Question 11

Reduced levels of precipitation can lead to droughts that
can dramatically__________Canadian grain production.

Answer 11

reduce

Question 12

The cost
of drought
can be

Answer 12

extremely
high.

Question 13

Recent data seems to support the scientific hypothesis that higher
average temperatures result in an _________________________
____________________________________________

Answer 13

increase in the intensity and frequency of storms

Question 14

Flooding, heavy rains, and strong winds can cause extensive damage
to buildings, bridges, and roads. Storms also disrupt electrical service
and put people in _________________.

Answer 14

physical danger

Question 15

As climate conditions change, the plants and animals that are adapted
to a particular biome ______________________________________.

Answer 15

may no longer be able to survive there.