Which of the following is one of the four main concepts in the Life-span Perspective, stating that change occurs in more than one direction meaning that gains and losses occur across the lifespan? Group of answer choices

1. historical context
2. plasticity
3. multiple directions
4. multiple causes

the technology changed agriculture in an impacting manner since many people left the field work by a cellular or other technological appliances

nothing

hope this !

not  

cuba  

russia  

iraq  

el salvador  

explanation:

known as the land of volcanoes, el salvador has visit seismic tremors and volcanic movement. it is the main nation in central america that does not have a coastline on the caribbean sea. about portion of all salvadorans live in the wide open. they are poor and don't have power or running water in their homes. in 1525, pedro de alvarado, a lieutenant of cortés's, vanquished el salvador. el salvador, with alternate nations of central america, pronounced its freedom from spain on sept. 15, 1821, and was a piece of a league of central american states until the point when that association broke up in 1838.

answer; self-serving bias;