Mrs. Lilly, a fifth-grade teacher, is explaining to her students how the moon influences ocean tides. She uses a visual aid of a ball and two buckets of water to highlight the differences and causes of a high and low tide. Mrs. Lilly uses the visual aid to enhance student learning because her students are probably at what stage of development in terms of Piaget's theory

"harry t. moore (1905-1951) – civil rights activist, leader, and the first martyr of the civil rights movement. fannie lou hamer (1917–1977) – leader in the american civil rights movement; co-founder of the national women's political caucus and freedom democratic party. james farmer (1920–1999) – congress of racial equality."

uhh idk for sure but i think it makes it difficult to pump the oil through the oil rigs

answer; broad features of society;