The last time the atmospheric carbon dioxide level was as high as it is today was years ago.

The last time levels of atmospheric carbon dioxide were this high came during the Pliocene Epoch, which extended from about 5.3 million to 2.6 million years ago

state the principle of separating two immiscible liquids by separating funnel. describe an activity with diagram to separate a mixture of water and kerosene oil. answer: immiscible layers separate out in layers depending on their densities in separating funne

answer:

technetium is the most reactive. this is followed by silver. the least reactive out of these three elements is strontium.