請幫我把下面的問題翻譯成中文,please

56.The follow is a simplified diagram of a nutrient cycle:
Which of the following correctly identifies the three groups of organisms?
A)decomposers(X) consumers(Y) producers(Z)
B)consumers(X) decomposers(Y) producers(Z)
C)producers(X) consumers(Y) decomposers(Z)
D)producers(X) decomposers(Y) consumers(Z)

57.Which of the following events can increase the nitrate content of soil?
A)lightning
B)cultivation of wheat
C)addition of humus

58.Which of the following changes in the environment would promote the decomposition of leaf
litter in a tropical rain forest?
increase(Air temperature) decrease(Humidity)

1.Goldfish, turtles and snakes are all classified as vertebrates because
A)they have scales/backbons.
B)they are cold-blooded