Answer:
I am 95% sure its b, if not then it is c
Answer:The Ozone Hole. One billion years ago, early aquatic organisms called blue-green algae began using energy from the Sun to split molecules of H2O and CO2 and recombine them into organic compounds and molecular oxygen (O2). ... As oxygen in the atmosphere increased, CO2 decreased.
In the deep waters of the ocean, coral reefs are found in abundance. Algae live on these coral reefs, providing nutrition and producing pigments that give color to the corals. The corals offer shelter to the algae. So, they share a association. Climate change has led to increased temperatures and has caused the corals to throw away the algae living inside them. This action causes the corals to be bleached because of a lack of pigment. This change will lead to a decrease in the coral growth, reduced fecundity and can cause death of corals.
Its d. they would change color hope it help
It is the EEG or the electroencephalogram. It is a test used to discover issues identified with electrical movement of the cerebrum. An EEG tracks and records cerebrum wave designs. Little metal circles with thin wires (cathodes) are put on the scalp, and after that send signs to a PC to record the outcomes.
