The sunlight helps the autotrophs carry out photosynthesis, through which they oxygenate the water and remove carbon dioxide. They also make the first trophic level, meaning that all other organisms survive due to the energy captured from sunlight.
It is true that amoebas prey upon algae in aquatic environments.
Answer: Gravitational lensing
Explanation: The arc that was seen around the galaxy by the scientist was caused by gravitational lensing; this is when a light dip and curves in the presence of huge objects.
Gravitational lensing can be simply refered to as a phenomenon where a gravitational field is created by a huge matter (cluster of galaxies) in space which distort and magnifies the lights coming from another huge matter (cluster of galaxies) from a distance but on thesame line of sight. (causing a formation of arcs of light around the huge object).
Drip method is one of the mainstays of sustainable agriculture because it : A. reduces soil erosion
Like the name said, Drip irrigation is designed to utilize the least amount of water supply by giving the water to the plant drip by drip. In this method, there is no flow of water that commonly caused the soil erosion (because the water flow cut out the soil little by little)