What are the consequences of humans adding gases and other substances to earth's atmosphere?

One of the largest seafood exporters to the united states is a. china b. brazil c. mexico d. saudi arabia

Cold case files recently began re-investigating an old murder case. the murder took place in the park; a young man, james, was hit over the head with a brick and killed. police suspected the jealous former boyfriend of james' wife, karen. whoever killed james may have washed their hands in a near-by bird bath as detectives found blood in the bird bath. since the murder took place before dna fingerprinting was available, the suspected killer, ronnie, went free. detectives are now reviewing the blood evidence using dna fingerprinting. based on the dna fingerprints of all possible suspects, who is james' killer?

True or false multiple lane changes must be done individually going through the same procedures for each lane change