Science 10

question 3 (1 point) question 3
which of the following is true of all greenhouse gases?

question 3 options:

they are naturally occurring.

they exist in fixed quantities.

they trap energy in the atmosphere.

they reflect incoming solar radiation.

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question 4 (1 point) question 4 unsaved
which of the following makes ice cores so useful in determining the composition of the atmosphere in the past?

question 4 options:

the presence of pollen

fossilized plants

air bubbles

the temperature of the core

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question 5 (1 point) question 5 unsaved

how has the amount (level) of carbon dioxide in the atmosphere been changing over the past 200 years?

question 5 options:

they have remained the same.

they have decreased.

they have increased.

they cannot be measured.

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question 6 (1 point) question 6 unsaved
the greenhouse effect is terrible for the planet earth and the environments contained here.

question 6 options:
true
false