Your thesis statement depends on what your essay is about-- you'll have to do your own assignment on this.
The thesis
"The impact of climate change on marine ecosystems and biodiversity."
The main point of the essay.
In the first, introductory paragraph of the essay
A strong thesis statement for an analytical essay would clearly present the main argument or analysis that will be discussed in the essay. It should be specific and concise, providing a roadmap for the reader to understand the focus of the analysis and the significance of the topic being explored.
The thesis statement depends on what you're doing the report on! You'll have to do your own assignment.
for a variety of reasons, cotton is arguably the most important fabric known to umankind
Sally and Jonah share the same important goal, but Jonah's ideas about how to reach it are better.
The thesis statement should be a clear and concise summary of the main argument or point of the essay. Without the sentences to choose from, I can't determine which one would be the best thesis statement.
A thesis statement is the main point of an essay.
A strong thesis for a compare-and-contrast essay clearly states the two subjects being compared and contrasted, and also presents the main points of similarity and difference between them. It should provide a roadmap for the reader to understand the purpose and direction of your essay.
often you wont know how you are going to answer your research question until youve compiled and analyzed your data