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(06.05 MC)A structure that prevents both gas particles and heat from entering or exiting it is best described as

(06.06 MC)Complete the sentence: Bioenergy from lumber waste is considered carbon neutral because the same amount of carbon dioxide released by burning lumber waste can be reabsorbed by

(05.06 MC)Increased urbanization may cause disruption of aquatic ecosystems due to

(06.02 LC)Which energy resource comes from tides and currents without producing greenhouse gases?

(06.02 LC)Complete the sentence. Fracking collects ________ that forms when organic matter is compressed under great temperature and pressure for millions of years.

(04.04 LC)Two greenhouse gases, carbon monoxide and carbon dioxide, have increased Earth’s temperatures as more of those gases have been released into the atmosphere. This is specifically known as

(04.01 LC)Complete this sentence: Low pressure systems create ________ with strong winds, rain, and storm surges that may form in the South Pacific Ocean.

(04.06 MC)Which of the following options can be added to a national climate plan to help protect communities from sea level rise?

(04.07 HC)Read the following case study:Microscopic, aquatic plants called phytoplankton are another way that ocean ecosystems absorb carbon dioxide emissions. Phytoplankton float with currents, consuming carbon dioxide as they grow. They are at the base of the ocean’s food chain, eaten by tiny animals called zooplankton that are then consumed by larger species. When phytoplankton and zooplankton die, they may sink to the ocean floor, taking the carbon stored in their bodies with them.As ocean currents change, however, the layers of surface water that have the right mix of sunlight, temperature, and nutrients for phytoplankton to thrive are changing as well. In the Northern Hemisphere, there is a declining trend in phytoplankton. In the Arctic, however, phytoplankton may be increasing due to climate change. The NASA-sponsored expedition in 2010 and 2011 found unprecedented phytoplankton blooms under about three feet (a meter) of sea ice off Alaska. Scientists think this unusually thin ice allows sunlight to filter down to the water, catalyzing plant blooms where they had never been observed before.(Source: climate.nasa.gov)Which statement best explains how the global changes in the case study could impact humans?

(04.05 HC)The graph shows how much sea levels changed from about 1870 to 2018. Items with pluses (+) are factors that caused ice to melt and sea levels to increase globally, while minuses (−) are variables that caused sea levels to decrease. These items are displayed at the time they were affecting sea level.© 2021 NASA’s Goddard Space Flight CenterWhich factor led to an increase in sea levels between 1900 and 1920?