The right answer is A. producer.
Phytoplankton are all cyanobacteria and microalgae (microscopic plants) present in surface waters and drifting with the currents. Unknown because invisible to the naked eye, phytoplankton is the lung of our planet. Thanks to photosynthesis, it produces more than half of the Earth's oxygen and consumes half of the carbon dioxide. Phytoplankton is essential for marine life because it is also at the base of the ocean food chain.
Astronomy can best be described as a "<span>a. study of objects beyond earths atmosphere", although the subject of astronomy can be much more complicated. </span>
B! The strongest characteristics will survive when the weak ones won't
The common choice supports a person that can recognize '<span>deceitful communicators</span>'is when locator will bring about less cost and pick up leverage over others not able to identify the trickery. I hope the answer will help you, feel free to ask more in brainly.