How did the strategies of the North and South change with the Union attack on Port Royal? A. The North refocused its efforts to blockade the port of Charleston, while the South employed a new system of defense for Charleston in case of another attack.
B. The North lifted its naval blockade of Charleston after its attack failed, while the South reopened its trade routes with France.
C. The North turned to diplomacy to convince the South to surrender, while the South sought recognition from Britain or France.
D.
The North began enlisting more black soldiers after they proved so brave during the attack, and the South vowed to treat black soldiers as runaway slaves.

b) a state law could be declared illegal if it contradicted the constitution.

explanation:

the conflict of this case originated when james w. mcculloch, a cashier of the baltimore branch of the second bank of the united states that the congress had chartered in 1816, refused to pay a tax imposed by the maryland state.

in the case, the state of maryland appealed that the establishment of a second bank was unconstitutional since the constitution didn't say anything about granting that power to congress. however, the case determined that even if such right wasn't specifically stated in the constitution, it was part of the "implied powers" of the government enunciated in article i, section 8.

the case also eliminated maryland's legislation to impose taxes to a national bank, asserting that even though the states retained the power of taxation, the constitution's laws are supreme and can not be controlled by the states, therefore, if a state law contradicts the constitution, it should be declared illegal.

explanation:

d

explanation:

incident infrared radiation is blocked. visible and ultraviolet radiation heat   earth.

earth radiates infrared radiation. infrared radiation is blocked and heats earth. visible and shortwave radiation heat earth.

earth radiates longwave radiation

longwave radiation is reflected downward longwave radiation heats earth