How do transitions help a newscast? They help move from story to story smoothly.
They help add more time to a news story.
They help an anchor prepare for a new story.
They help warn a reporter his story is coming up.

They help move from story to story smoothly.

Explanation:

In nowcast, transition is a brief period of time that the anchor use to move form one topic to another.  It's carried out by using the combination of changed tone and visual editing team.

During transitions, news editing team usually create some sort of digital effect that help shifted the audience attention to the new topics , along with the changes in headlines and pictures that represent the new story .

the federal government of the united states was established by the constitution. us is a presidential republic. the president is head of state, head of government and of a two party legislative and electoral system. the supreme court balances the powers of the federal and the state government. yhe executive branch is headed by the oresident. there are two chambers of congress, the senate and the house of representatives. judicial power is exercised by the judicial branch (or judiciary), comprised of the supreme court and lower federal courts. the judiciary's function is to interpret the   constitution as well as the federal laws and regulations.