Questions

Labor unions are associations of workers who pursue common objectives. Workers use this platform to bargain collectively on behalf of the majority of workers.

Arsia Mons is among the three volcanos of the planet Mars. Arsia Mons is a shield volcano with a slow slope. Arsia Mons is thirty times in volumes of Mauna Loa in Hawaii, the largest volcano on Earth.

Primary key helps us to identify a row uniquely in a relation

The carbon arc lamp was the first widely-used type of electric light and the first commercially successful form of electric lamp.

Here are the Carbon Arc Lamp Uses :

-Super bright light, capable of lighting a large length of street or a large factory interior.

-Was the ONLY electric light available to light large areas from 1800 - 1901.

-Was cheaper to light streets with the arc lamp than gas or oil lamps.

This acceleeration denoted by letter g varies from place to place. Unless stated otherwise, it can be taken 9.8 m/s2.