HELPP ASAP PLS what do all signals that are used to communicate have in common ?

a. they all involve light waves

b. they all send information

c. they all use printed words.

d. they all use a series of sounds

The magna carta was important in english history because it: centralized power. affirmed the divine right of monarchs. granted the nobles the right to approve taxes. established elections for government offices throughout england.

President wilson’s moral diplomacy led him to support 1. revolutions in russia. 2. increased trade with china. 3. independence for the philippines. 4. taking over cuba.

What role did the alliance system play in preventing austria-hungary and serbia from coming to a compromise settlement?