External motivations
social pressure
self motivation
The Earth is thought to have been formed about 4.6 billion years ago by collisions in the giant disc-shaped cloud of material that also formed the Sun. Gravity slowly gathered this gas and dust together into clumps that became asteroids and small early planets called planetesimals.
Hope that helped ! :)
They must register for the Selective Service at the age 18, or (when they have received citizenship later), between age 18-26.
The correct answer is co-workers.
This group represents an influence because on a daily basis we met each other in the office, work together, we share common goals and responsibilities, and the success of our jobs depends on the correct work of each of the members of the department.
A social group is the number of people that interact with each other and have commonalities, same interests and get together to accomplish something.