Japan, China and the US are the top 3 consumers of seafood and 1.2 billion people depend on seafood as their daily source of protein. However our fishing stocks have decreased by 90% between 1950 and 2011. In addition, certain commonly used fishing practices cause horrendous damage to the rest of ocean ecosystems. A study in 2006 estimated that, if fishing continues at the current rate, all the world's fisheries will have collapsed by the year 2048. What might be causing greater and greater demand for seafood?Why do you think we have seen a dramatic increase over the last 50 years in how many fish we are able to catch?

Explanation below

Explanation:

Asia and the Pacific region have continued to remain the world's largest producer of fish. Various researchers have identified certain benefits of consuming seafood, which have caused greater demand for them. Apart from being ideal source of vitamins, fish is also rich in Omega 3 fatty acids, which can help prevent high blood pressure, cancer and heart diseases. Seafood also strengthen the immune system through their antioxidants.  

Rapid advances in fishing technology have led to the dramatic increase over the last 50 years in how many fish we are able to catch. Most people in the fishing business now use factory ships, in place of fishing vessels. These ships are can stay at the sea for several weeks and they have all the necessary equipment that can be used to either freeze of tin fish that they catch using their hunting ships.  

The factory ships need to get full before they can return to base and this has caused over a 7% growth in catches every year.

answer; seasons change because earth tilts on its axis; and the angle of the tilt causes the northern and southern hemisphere to trade places throughout the year;