Many types of coral have experienced declines in their abundance over the past several decades. The Global Coral Reef Monitoring Network has collected data to show that 14% of the coral in the world have disappeared since 2009. Many scientists believe factors like global warming and pollution contribute to the decrease in coral populations. One type of coral is called the great star coral. It is found in the Atlantic Ocean and Caribbean Sea. It forms colonies that look like boulders. As with many coral species, it is susceptible to diseases. It is likely that increased ocean temperatures increase the risk of coral diseases. The graph below shows changes in the population of living great star coral in an area studied by the Coral Reef Evaluation and Monitoring Project in Florida.

Question 1: What is likely true about coral biodiversity in the past 30 years?(1 point)
1.Biodiversity has increased.
2.Biodiversity has decreased.
3.Biodiversity has stayed the same.

Question:2 Study the graph above. If you had to make an educated guess, when is it most likely that a large bleaching event occurred? (1 point)Responses
1.from 2011 to 2012
2.from 2014 to 2015
3.from 2016 to 2017
4. from 2019 to 2020

Question 1: What is likely true about coral biodiversity in the past 30 years?

2. Biodiversity has decreased.

Question 2: Study the graph above. If you had to make an educated guess, when is it most likely that a large bleaching event occurred?

3. from 2016 to 2017