Blue is the correct answer to that question from my math
Amnesia is the loss of all memory of an event of a situation. Other things that also involve loss of memory are short term memory loss, or long term memory loss
Fewer chloroplasts in the outer layer means more light can get past it and into the deeper mesophyl.
In lakes and ponds there is a whole ecosystem, with its animals and plants. Between them they are in charge of maintaining the entire habitat in favorable conditions for living. The fish tank does not have that cleaning system.
Is this a multiple choice question? If so, That would give others a better chance.