500
Choose the best sentence for the paragraph.
Many efforts are being put into protecting and breeding the endangered panda bear. Only about 1,600 remain living in the wild in China. The lack of bamboo in natural areas is the main reason for the declining number of pandas. Bamboo, surprisingly, has very little nutritional value. _________________? Where pandas live, in central China, there is bamboo everywhere. Therefore, pandas do not have to expend much energy to retrieve it. As zoos try to maintain and build panda populations, vitamins and proteins are added to their bamboo diets. Mimicking the environments that pandas live in and the plants they eat could eventually lead to larger panda populations.
a.Why, then, do pandas like it so much?
b.Why is the United States concerned about pandas?
c.Why is China investing in preserving pandas?
d.Why, then, are pandas endangered?
a.Why, then, do pandas like it so much?