In chemistry class, Allen determined the effectiveness of various metals in releasing hydrogen gas from hydrochloric acid.  Several weeks later, Allen read that a utilities company was burying lead next to iron pipes to prevent rusting.  Allen hypothesized that less rusting would occur with the more active metals.  He placed the following into separate beakers of water:  1 iron nail,1 iron nail wrapped with an aluminum strip, 1 iron nail wrapped with a magnesium strip, 1 iron nail wrapped with a lead strip.  He used the same amount of water, equal amounts (mass) of metals, and the same type of iron nails.  At the end of 5 days, he rated the amount of rusting as small, moderate, or large.  He also recorded the color of the water. consistency:

observability:

Natural:

Predictably:

Testability:

Tentativeness:

plz help idk what to do for CONPTT

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.