Why does summer occur in the southern hemisphere when winter occurs in the northern hemisphere

summer for the southern hemisphere takes place during the months of December, January, and February because that is when it receives the most direct sunlight.

Explanation:

The earth is tilted in relation to its poles, leaving half of it closer to the sun than the other at any one time. When it's winter, it's because the spot where you live is facing away from the sun, meaning the other half is facing towards it, thus, they have summer.

In short, it's because of the tilt of the earth in relation to its poles.

the correct answer is modern american cars are not available due to trade restrictions.

trade between cuba and the united states have serious restrictions. the u.s. imposed an economic embargo on cuba, that among other things means that modern american cars are not available due to trade restrictions.

in response to some governmental actions of the authorities from cuba, president john f. kennedy proclaimed an embargo on trade between both countries in february 1962. the trade embargo remains active until this day and was implemented directly by the departments of commerce and the department of treasury.

in president trump’s administration, there is a national security presidential memorandum that "strengthens the policy of the u. s.", affecting trade with cuba.

a is the final ! : )