For half of the radioisotopes of a certain kind to decay into its more stable isotope, the amount of time required is called the . Radiocarbon dating is typically used to date more recent objects like , cloth, wood, and plant fibers. rocks can't be dated accurately using isotopic dating because this rock type is formed through the sedimentation of different rocks and mineral fragments. Using the principle of faunal succession, scientists can determine the age of rocks by the embedded within them.

Which entry is in the wrong position in the table?

Moving down the ramp from 6 meters to

Recently, crops of vegetables such as lettuce and green onions have been contaminated, while they are still on the farm, with bacteria that cause food poisoning. how will science influence the way the government responds to prevent an increase in food-borne diseases? because science has shown that lettuce and green onions are not nutritionally valuable, the government may pass laws that ban the sale of lettuce and green onions. because science has shown that there is no way to prevent bacterial contamination, the government may pass laws that punish businesses that buy lettuce and green onions. because science has shown that the washing of hands prevent the spread of infectious diseases among people, the government may pass laws that require hand washing by everyone who handles food. because science has shown there are ways to find the source of the contamination, the government may pass laws that require farm practices that reduce the contamination of lettuce and green onions.