Lance Carson, an early environmentalist since 1984, launched the <em>non-profit organization Surfrider Foundation</em> which is dedicated to protect and preserve the world's oceans, waves, and beaches.
Explanation:
Through this organization, Carson uncovered the truth behind the mystery of the Great Pacific Garbage Patch and explained the tragical consequences of our society's vast consumption of disposable plastic: it destroys thousands of animals’ life and its habitats, and pollutes our body because of the chemicals we ingest when we use plastic on our daily basis.
"She" is the only third person singular pronoun used in all 4 sentences. "Will have been" is the future perfect tense and these two combined make the third person singular, future perfect tense.
