Is this a true or false question
Texas changed from a one party Democratic state to a one party Republican state with the 1980 presidential election of Ronald Reagan.
The Republican party developed dramatically in Texas during the Reconstruction Era, post constitutional amendments freeing the slaves giving suffrage to black males. After the Reconstruction Era, the Republican party of Texas gradually lost power and the Democrats passed disfranchising laws near the turn of the century requiring poll taxes be paid prior to voter registration, with parties establishing white primaries , black voting dropped.
As a result, the biggest base of electoral support for the Republican party in Texas was German Texan community. The first Republican statewide primary was held in 1926, but drew only 15, 239 voters as by the disfranchisement was well established and Texas was essentially a one- party state.
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Answer:
Statement that is true about electromagnetic and mechanical waves is:
Option B: Mechanical waves must travel through a medium, but electromagnetic waves do not require a medium to travel.
Explanation:
'Electromagnetic' waves do not need any medium to travel whereas 'mechanical waves' need a medium or matter for transmission. Electromagnetic waves are produced by the 'vibrations' of the charged particles. They can even travel in vacuum.
On the contrary, mechanical waves are caused by the 'wave amplitude'. Mechanical wave can travel in solid, liquid and gas and are considered to be periodic disturbance.
Thus, Option B is the most statement apt explaining the difference between electromagnetic and mechanical waves.
