Answer:
The correct answer is the second one where the C02 is taken from the atmosphere.
What <span>scientists are trying to understand about the climate of earth by analyzing these ice samples is changes in atmospheric gas composition.
By examining small pockets of air trapped deep within frozen glaciers, these scientists want to see whether or not, or how gas composition within these glaciers changes and how it affects the atmosphere that surrounds our planet.
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On his visit to the Galapagos Islands, Charles Darwin discovered several species of finches that varied from island to island, which helped him to develop his theory of natural selection.
Echinoderm is the name given to a member of the phylum Echinodermata. They have radial symmetry and this includes sea urchins, sand dollars, sea stars and sea cucumbers. It is suggested that they are related to the chordates which is the answer.