15 questions
Shows global mean surface temperature anomalies. The top graph shows how the average results of climate models are consistent with observed data if the models include both anthropogenic (greenhouse gas emissions) and natural forcings (i.e., volcanic eruptions, variations in solar radiation, etc.). The bottom graph shows how removal of anthropogenic forcings creates an anomaly in the modeled and observed historic data.
What question is the caption trying to explain?
It explains how we know humans have contributed to the greenhouse gas emissions and the carbon dioxide levels detected in the past were not solely caused by natural occurrences.
It explains how the recorded temperature levels are the result of the natural forces of the universe and Earth's formation.
Which climate feedback only takes days to form?
water vapor
ocean circulation
Peat
Permafrost
What are the main drivers of climate change according to the diagram? Click all that apply.
Clouds
Aerosols
Solar Output
Types of vegetation
Population density
Run-off from the mountains is considered a component of which nutrient cycle?
Some aerosols act as cloud condensation nuclei modifying the properties of cloud droplets and possibly affecting precipitation.
Summarize in your own words.
WHich of Earth's systems includes rocks, continents and the ocean floor?
Atmosphere
Biosphere
hydrosphere
Geosphere
What general trend is common among the three areas?
The temperature peaks in the 8th month
The temperature dips in the 8th month
There is a direct correlation between the temperature and the rainfall.
How do we describe the study of interactions among organisms and their interactions within their environment?
According to Cook, the current likelihood of a megadrought is 12 percent. If greenhouse gas emissions stop increasing in the mid-21st century, as in a climate scenario called RCP 4.5, Cook and his colleagues project the likelihood of megadrought to reach more than 60 percent.
What is the likely meaning of a megadrought based on the context of the passage?
a month without rain
a drought lasting more than three decades
a temporary drought
How are biotic and abiotic factors related?
If the outer ring consists of human causes represented by the red portion, what is the orange portion?
meteorites
volcanism
solar output
all of the choices
How does wind form?
from heating and cooling of the Earth's surface
Earth's rotation
ocean currents
Global sea level has risen by about 8 inches since reliable record keeping began in 1880. It is projected to rise another 1 to 8 feet by 2100. This is the result of added water from melting land ice and the expansion of seawater as it warms.
According to the passage, where is all the water coming from?
melting glaciers and record snowstorms
record rainfall and water formation
warming ocean water and melting glaciers
As air is warmed, the molecules
move faster and it becomes more dense
move faster and it becomes less dense
move slower and it becomes more dense
move slower and it becomes less dense
What one thing could you do to make the biggest impact on the climate?
walk or use a bike instead of a car to go places
use a kindle instead of buying books
get solar panels
try to recycle items in my house or community