Decoding the Weather Machine Discover how Earth’s intricate climate system is changing. copy this link in website the viedo around 1:53 mins https://www.pbs.org/wgbh/nova/video/decoding-the-weather-machine see the video and the all answers will be in viedeo QUESTION 1 Concerns about climate change have emerged based on scientific research that identified over 26,000 independent lines of evidence that the planet is warming. Which of the following is NOT cited as evidence of climate change in the first few minutes of the video? a. Length and intensity of heatwaves has increased. b. Plants and trees are flowering earlier in the year. c. Birds are migrating to higher latitudes. d. Glaciers are melting. e. All of the above are mentioned. QUESTION 2 Earth’s climate has changed naturally in the past, as evidenced by the boulder placed in Central Park by a continental glacier. The scientific evidence says that today’s climate change is caused by: a. Change in volcanic eruptions b. Changes in solar output c. Milankovitch cycles d. Burning of fossil fuels QUESTION 3 Joseph Fourier conducted experiments to understand Earth’s energy balance and infrared radiation in which year? a. 1824 b. 1724 c. 1924 d. 2004 QUESTION 4 John Tyndall discovered that ________ is a “heat-trapping gas” in 1859. a. oxygen b. hydrogen c. carbon dioxide d. nitrogen QUESTION 5 The work of Fourier and Tyndall set the scientific foundation for the understanding of: a. the ozone cycle b. the greenhouse effect c. thermohaline circulation d. albedo QUESTION 6 In the 1950s, when Dave Keeling first began to measure levels of atmospheric carbon dioxide above Hawaii at Mauna Loa, the first few months of readings caused him to think that the equipment was malfunctioning. Describe the results that caused this confusion. Write 2-3 sentences. QUESTION 7 Was there an equipment malfunction? Explain the new discovery that this event revealed. Write 2-3 sentences. QUESTION 8 How many years of data do ice core samples from Antarctica reveal? a. 800,000 b. 8,000,000 c. 800 d. 8,000 QUESTION 9 Considering the composition of gases in the atmosphere, do the last 60 years of ice core data confirm the data from the Keeling curve?  Yes   No QUESTION 10 Scientists who compare oxygen-16 and oxygen-18 levels incorporated into clamshells in order to determine past temperature patterns are examining: a. the saffir-simpson scale b. dendrochronology c. isotopes d. gyres QUESTION 11 Describe the relationship between carbon dioxide levels and temperature, as indicated in the scientific record over millions of years: QUESTION 12 Natural sources that add carbon dioxide to the atmosphere include all of the following, EXCEPT: a. volcanoes b. decay of forests c. forest fires d. photosynthesis QUESTION 13 Air contains carbon atoms with different numbers of neutrons. Ralph Keeling and other scientists have tested carb.

1. Decoding the Weather Machine
Discover how Earth’s intricate climate system is changing.
copy this link in website the viedo around 1:53 mins
https://www.pbs.org/wgbh/nova/video/decoding-the-weather-
machine
see the video and the all answers will be in viedeo
QUESTION 1
Concerns about climate change have emerged based on
scientific research that identified over 26,000 independent lines
of evidence that the planet is warming. Which of the following
is NOT cited as evidence of climate change in the first few
minutes of the video?
a. Length and intensity of heatwaves has increased.
b. Plants and trees are flowering earlier in the year.
c. Birds are migrating to higher latitudes.
d. Glaciers are melting.
e. All of the above are mentioned.
QUESTION 2

2. Earth’s climate has changed naturally in the past, as evidenced
by the boulder placed in Central Park by a continental glacier.
The scientific evidence says that today’s climate change is
caused by:
a. Change in volcanic eruptions
b. Changes in solar output
c. Milankovitch cycles
d. Burning of fossil fuels
QUESTION 3
Joseph Fourier conducted experiments to understand Earth’s
energy balance and infrared radiation in which year?
a. 1824
b. 1724
c. 1924
d. 2004
QUESTION 4
John Tyndall discovered that ________ is a “heat-trapping gas”
in 1859.

3. a. oxygen
b. hydrogen
c. carbon dioxide
d. nitrogen
QUESTION 5
The work of Fourier and Tyndall set the scientific foundation
for the understanding of:
a. the ozone cycle
b. the greenhouse effect
c. thermohaline circulation
d. albedo
QUESTION 6
In the 1950s, when Dave Keeling first began to measure levels
of atmospheric carbon dioxide above Hawaii at Mauna Loa, the
first few months of readings caused him to think that the
equipment was malfunctioning.
Describe the results that caused this confusion. Write 2-3
sentences.

4. QUESTION 7
Was there an equipment malfunction? Explain the new
discovery that this event revealed. Write 2-3 sentences.
QUESTION 8
How many years of data do ice core samples from Antarctica
reveal?
a. 800,000
b. 8,000,000
c. 800
d. 8,000
QUESTION 9
Considering the composition of gases in the atmosphere, do the
last 60 years of ice core data confirm the data from the Keeling
curve?
Yes
No

5. QUESTION 10
Scientists who compare oxygen-16 and oxygen-18 levels
incorporated into clamshells in order to determine past
temperature patterns are examining:
a. the saffir-simpson scale
b. dendrochronology
c. isotopes
d. gyres
QUESTION 11
Describe the relationship between carbon dioxide levels and
temperature, as indicated in the scientific record over millions
of years:
QUESTION 12
Natural sources that add carbon dioxide to the atmosphere
include all of the following, EXCEPT:
a. volcanoes

6. b. decay of forests
c. forest fires
d. photosynthesis
QUESTION 13
Air contains carbon atoms with different numbers of neutrons.
Ralph Keeling and other scientists have tested carbon dioxide
from atmospheric samples to identify the source of the
additional carbon dioxide in the atmosphere. What is the
source?
a. volcanoes
b. forest fires
c. photosynthesis
d. combustion of fossil fuels
QUESTION 14
In 1-2 sentences, explain the difference between weather and
climate.

7. QUESTION 15
Scientists can calculate how much carbon dioxide humans are
putting into the air, and we can measure how much carbon
dioxide is currently in the atmosphere. Do these numbers
match?
Yes
No
QUESTION 16
Trees and vegetation sequester carbon dioxide. Trees are
absorbing ___________ of the extra carbon dioxide from the
atmosphere.
a. 5%
b. 10%
c. 25%
d. 50%
QUESTION 17
Oceans are absorbing ___________ of the extra carbon dioxide
from the atmosphere.
a. 5%

8. b. 10%
c. 25%
d. 50%
QUESTION 18
“The water in the ocean circulates. At the surface, it is warmer,
but in the deep ocean, the water is very cold and has not been
exposed to the atmosphere for hundreds of years. It is in the
Southern Ocean that this deep cold water rises to the surface.”
This is describing the:
a. El Nino effect
b. theory of biogeography
c. thermohaline circulation
d. cyclogenesis
QUESTION 19
The Argo floats reveal that over the last 30 years, the ocean has
heated up by an average of one-half degree Fahrenheit. This is
enough to heat the lower atmosphere by:

9. a. One-half degree Fahrenheit
b. 2 degrees Fahrenheit
c. 5 degrees Fahrenheit
d. 20 degrees Fahrenheit
QUESTION 20
At the Jakobshavn glacier in Greenland: what is “calving”?
Write 1-2 sentences.
QUESTION 21
Scientists are monitoring the movement and ice loss from
glaciers. At Greenland, which of the following describes the
pattern of ice loss that was recently confirmed? Mark all that
are correct.
a. Warmer water is destabilizing glaciers from below.
b. About half of ice loss occurs through calving.
c. Warmer air is melting the glaciers.

10. d. Ice loss through calving occurs much more quickly than ice
loss from melting.
QUESTION 22
Why do scientists care about ice loss from Greenland and
Antarctica? Explain in 2-3 sentences.
QUESTION 23
List two places in the world that are already dealing with sea
level rise that is connected to climate change.
QUESTION 24
List the four major physical components that are represented in
a climate model.
QUESTION 25
n terms of climate change, society faces three options for the
future: mitigation, adaptation, and suffering. Give an example
to illustrate the meaning of each of these terms.
Write 2-3 sentences to explain each example.

11. QUESTION 26
Give three examples of innovations that can transform society’s
reliance on fossil fuels to renewable, carbon-free sources of
energy.

12. QUESTION 27
What is carbon capture?
QUESTION 28
What is meant by “negative emissions”?

13. QUESTION 29
What is “no-till” agriculture, and how is this related to carbon
dioxide?