(18-19）Bees are amazing! They are also very important. Everyone knows that honeybees makehoney. But bees do a lot of other things, too. They make beeswax which can be used for everything from food to hand cream. They also help people grow food. When bees collectpollen for food, they pollinate plants. Many fruit and nut trees are pollinated by bees.People that take care of bees are called beekeepers. Right now, they have a big problem.Many bees are leaving their hives and disappearing. Nobody is really sure why this ishappening. A polluted environment might be one problem. Poisons that farmers use might also be a problem. The bees could also be getting sick.But people need to solve this problem. We need healthy bees!
18. What is one reason bees might be disappearing?
(A) Bees make beeswax.
(B) Bees help people grow food.
(C) Beekeepers collect pollen for food.
(D) A polluted environment.