You are presented with the question "What are canyons formed by?" and the following answer choices: - rocks - rainfall - rivers - mechanical force - calcite - silt - water - gravity Now knowing that erosion causes a river to become deeper and wider and canyon formed as a consequence of river erosion, choose the best answer.
rivers
(Question)
You are presented with the question "What can be reduced when a population suddenly gets much smaller?" and the following answer choices: - Pollution - The size of the Earth - Greenhouse gasses - The size of bottlenecks - The size of the environment - Genetic variation - Plant growth is reduced - Quality of life Now knowing that bottleneck effect occurs when a population suddenly gets much smaller and genetic variation can be reduced by random genetic drift, population bottlenecks, founder effect, choose the best answer.
(Answer)
Genetic variation
Ques: You are presented with the question "Fertilization occurs when a sperm and nuclei what?" and the following answer choices: - fuse - leave - CO 2 - fusion - emerge - grow - H 2 O - procreate Now knowing that fertilization occurs when a sperm and an egg fuse and fertilization is complete when the sperm and egg nuclei fuse, choose the best answer.
Ans: fuse
(Q).
You are presented with the question "what does bone provide protection for?" and the following answer choices: - health - lungs - forces - humans - animals - Balance - Man - disease Now knowing that bone provides protection for soft tissues and internal organs and internal organs that can be affected include kidneys, lungs, heart and brain, choose the best answer.
(A).
lungs
Ques:You are presented with the question "What causes sediment to form?" and the following answer choices: - soils - tectonic plates - magnets - water - rivers - wind - loose soil - erosion Now knowing that sediment is formed by weathering and all sediments originate from the weathering and erosion of older rocks, choose the best answer.

Ans:erosion
Ques: You are presented with the question "Which animal would absorb the most visible light?" and the following answer choices: - sea urchins - in the frog family - Something formed from skeleton - A melanistic panther - all animals - amphibians - an amoebae - the body's largest organ Now knowing that if an object is black then that object absorbs all visible light and some leopards are melanistic, which produces a black fur, choose the best answer.
Ans:
A melanistic panther