You are presented with the question "What prevents erosion on dunes?" and the following answer choices: - streams - cacti - wind - LEDs - fibrous - grass - fibers - bamboo Now knowing that sand dunes are formed by the wind transporting and depositing sand and dune grass is very important to the preservation of sand dunes, choose the best answer.
grass

You are presented with the question "What helps animals survive?" and the following answer choices: - vegetation - rivers - valleys - traits - Pituitary gland - kinetic energy - hibernation - rocks Now knowing that an animal requires warmth for survival and vegetation is required by many animals for warmth and security, choose the best answer.
vegetation

You are presented with the question "What requires stamina to succeed at physical activities?" and the following answer choices: - rocks - rainbows - running - tigers - waterfalls - pigeons - humans - bears Now knowing that an animal requires stamina to succeed at physical activities and bears are common but elusive animals, choose the best answer.
bears

You are presented with the question "What do bees aid many plants in doing?" and the following answer choices: - Reproducing - growth - Obtaining nutrients - Photosynthesizing - survival - staying warm - Storing water - support Now knowing that plant reproduction requires pollination and many plants are pollinated by bees, choose the best answer.
Reproducing