The Civil Rights Act of 1964 (Pub.L. 88-352, 78 Stat. 241, enacted July 2, 1964) was a landmark piece of legislation in the United States that outlawed unequal application of voter registration requirements and racial segregation in schools, at the workplace and by facilities that served the general public ("public accommodations").
The Voting Rights Act of 1965 outlawed discriminatory voting practices, such as literacy tests, that had been used in the widespread disenfranchisement of blacks.
An insulator, such as rubber or plastic, is used to prevent the passage of electricity. To prevent the passage of heat, materials like fiberglass or foam insulation are commonly used.
Vetoing
Senator Strom Thurmond tried to prevent the passage of the civil rights act of 1957 by filibuster.
we can prevent smoking cigarettes by banning them from persons who owns a shop and sells them
To prevent or stall the passage of a bill.
A guard, especially a soldier posted at a given spot to prevent the passage of unauthorized persons. Very true, soldiers during the first world war were on sentry duty for up to two hours before another soldier took over.
shutting off a part or region to prevent passage by hostile forces
Prevent the passage of electricity to or from (something) by covering it in nonconducting material.
To prevent anyone from consuming any alcoholic beverage.
to prevent a nationwide railroad strike
No, glass bottles with plastic caps are typically sealed tightly to prevent air passage. However, if the caps are not securely tightened, there may be minimal air passage.
They are variable controls which can open to allow the passage of material and then closed to prevent further passage of materials. If you didn't have an anal sphincter you'd really have problems.