in which situations is work being done?
a. hannah leans against her locker, but it doesn’t move.
b. andy’s car rolls down a hill with the engine off.
c. a wind turbine stands still on a sunny, windless day.
d. a balloon expands as it is heated by the sun.
e, james pedals a stationary exercise cycle that doesn’t move.

Glycogen is an energy-storage molecule in humans. a hormone that is called insulin controls the storage of glycogen in the liver. insulin is made up of amino acids.

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.

Support mangrove trees out of the water. a) pneumatophores b) prop roots c) sand dunes d) tide supports