Sand dunes can have many shapes and sizes. How is a natural sand dune formed? A. O Windblown sand piles up on an open beach.
B. Windblown sand is trapped by beach grass or other objects.
C.
Sand is washed up on shore from the ocean and forms hills.
D
Animals push sand into small hills as they burrow along a beach.

Maria wanted to grow a fern in her backyard. acting on a suggestion from a friend, she collected brown dots from the underside of a fern's leaves and then potted them. after a few days, maria saw small fern leaves erupting from the pot. which statement explains this phenomenon? a. the fern transitioned from gametophyte generation to sporophyte generation. b. the fern grew as a result of mitosis. c. the fern transitioned from sporophyte generation to gametophyte generation. d. the fern grew to be genetically identical to its parent plant.

Regarding most of the narrator’s story, which word best describes the tone?

Explain the process that creates the heat of the sun?