The answer is C!
C - Rivers wear away banks until the bank is broken and the river flows straight.
Answer: B
Explanation: A lunar eclipse is where the moon is right in front of the sun. Thus causing darkness on the earth during the lunar eclipse.
Sponges are a type of aquatic animal whose body is covered in tiny pores called ostia. The ostia allow water, oxygen, and other nutrients to flow into the sponge's body, and for waste products like ammonia and carbon dioxide to exit their body. The respiratory system of a sponge is based on the process of diffusion.
Somatic cells or body cells of an organism undergo cellular division that maintains the number of chromosomes of the beginning cell prior to the division, this process is called mitosis.
