Passive sentences on scientific text

Are Bananas Becoming Extinct ?

The banana, one of the world's most popular fruits, is in danger of becoming extinct. Scientists have found that a virus has been attacking  Cavendish bananas, the most widely-eaten banana,  in Asia and Australia for some years. At the moment there is no way to fight off the disease. Because bananas are grown in plantations , a disease can attack all of the bananas  of the same kind. It spreads through infected plants, soil and water.

The new virus is similar to the Panama disease which wiped out certain types of bananas in the 1800s. The disease attacks the banana plant and kills it off completely. Scientists fear that the new virus called Tropical Race 4, a mutation of the Panama disease,  will eventually spread to Latin America, where most of the world's bananas are produced.It has already destroyed whole plantations in south-east Asia and northern Australia.

Although Tropical Race 4 has been around for some decades , it has spread more quickly in the past few years. Currently, food experts are trying to contain the disease and stop it from spreading to other continents. Millions of people around the world rely on the banana as a source of food. About 12 % of the world's banana production of over 140 million tons are exported .

Active to Passive

• Food experts are trying to contain the disease. ➡ The disease is being tried to contain by food experts.
• Millions of people around the world rely on the banana ➡ Banana is relied by millions of people around the world.
• a virus has been attacking  Cavendish banana ➡ Cavendish banana has been attacked by a virus.
• Scientists fear of the new virus ➡The new virus is feared by scientists.
• The disease can attack all of the bananas  ➡ The bananas can attacked by the disease.
• the Panama disease wiped out certain types of bananas in the 1800s ➡ Certain types  of bananas was wiped out by the Panama in the 1800s.
• The disease kills it off completely. ➡ It is killed off completely by the disease.
• It has already destroyed whole plantations. ➡ Whole plantations already had been destroyed by it.