Answer :
1) After the BP oil spill, the number of whale sharks around the oil rigs decreased. The spill had a negative impact on the marine ecosystem, including the whale sharks' habitat.
2) In response to being called a "radical," Sylvia has stated various things throughout her career. One response she might give is that she considers herself a passionate advocate for the ocean and its preservation.
3) Two fisheries that are potentially being wiped off the planet are the tuna and shark fisheries. Overfishing, habitat destruction, and pollution are threatening these fisheries, leading to a decline in the populations of tuna and sharks.
4) In 1947, there were a significant number of oil wells, but the exact number would depend on the specific region or country being referred to.
5) The number of oil wells today varies depending on the location and country. Again, without more specific information, it is challenging to provide an exact number.
6) Sylvia states: "No ocean, no life; no ocean, no us." This statement emphasizes the critical role of the ocean in sustaining life on Earth.
7) Jacques Cousteau invented the aqua-lung, which was a pioneering device for underwater breathing. This invention allowed divers to explore the depths of the ocean more easily and safely.
8) For the last six decades, the Gulf of Mexico has been dealing with and getting hit with various environmental issues, including pollution, oil spills, and the destruction of habitats.
9) Nitrogen fertilizer run-off from agricultural activities can lead to water pollution. This excessive nitrogen enters water bodies, causing an increase in nutrient levels.
10) The nitrogen fertilizer run-off primarily comes from agricultural activities, including crop production and livestock farming. Fertilizers containing nitrogen are used to enhance crop growth, but excessive use or improper application can lead to run-off into nearby water bodies.
11) The path of nitrogen fertilizer run-off starts from agricultural fields where fertilizers are applied. When it rains or when irrigation water is used, the excess nitrogen can be washed away from the fields and transported through surface runoff or leaching into nearby water bodies.
12) The end result of excessive nitrogen fertilizer run-off is the pollution of water bodies. This pollution can lead to harmful algal blooms, degraded water quality, and disruptions to aquatic ecosystems.
13) The fish are dying from various factors, including the pollution caused by nitrogen fertilizer run-off, oil spills, habitat destruction, and overfishing.
14) The area affected by nitrogen fertilizer run-off and its resulting pollution is often referred to as a "dead zone." Dead zones are areas of water where oxygen levels are severely depleted, making it difficult for marine life to survive.
15) The number of dead zones in 1975 and 2014 can vary depending on the specific region or country being referred to. Without more specific information, it is challenging to provide accurate numbers.
16) The biggest discovery on Sylvia's Indian Ocean Expedition was the identification of a new species of manta ray. This discovery was significant because it added to our knowledge of the diversity of marine life in the Indian Ocean and highlighted the need for conservation efforts to protect these unique species.
17) Sylvia gave her plant collection to the Smithsonian National Museum of Natural History. The museum houses extensive collections of plant specimens from around the world and serves as a valuable resource for scientific research and education.
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