Graphic organizers are visual and graphic displays that organize ideas and demonstrate relationships between different information and concepts. They are designed to improve learning outcomes for students, review information, and are especially helpful to students who struggle with arranging information.
this is what I found online..not sure if it helps but here
Landed or descended is the best option as that is the meaning of alighted
The fourth one is correct
Mechanics refers to the rules of the written language, such as capitalization, punctuation and spelling. An understanding of both grammar and mechanics is required to clearly communicate your ideas in a paper.
