Despite the manatee's aquatic appearance, it is not closely related to whales, dolphins, seals, or sea lions. So I think it is dolphin and whale
The once white light beam would turn green. the people (humans) would only see green.
They are a species, the definition is:
A group of organisms that have similar characteristics and can interbreed to produce fertile offspring
Answer:
n is an even number if and only if it's divisible by 2.
Explanation:
Biconditional statement is a type of statement which is only written when the both segments of the sentence are true. For writing biconditional statement, ''if and only if'' words should be used. For example, the two sides of the triangle are same if and only if both have same length. The biconditional statement considered as true if both the segments are true in nature. Symbolically, it is denoted by double arrows between two symbols.
It should be karst limestone and it forms by erosion of rocks such as limestone that dissolved in water in a process called chemical weathering :)
