Question

climates naturally change over time, and desert organisms have evolved along with those changes. however, recently the climate has been changing too fast for plants and animals to keep up. global temperatures continue to rise, and desert temperatures are rising even faster. as the deserts heat up, they are expanding. every year, over 80,000 square miles of grass and farmland are turning into desert. this process is called desertification. over time, many plant and animal species could become extinct. losing farmable land to desert also means there may not be enough land for humans to grow food. it is important to find ways to combat desertification to ensure survival.
based on the passage, which of these is true?
choose one option
a climate change is contributing to desertification.
b desertification affects humans as well as plants and animals
c desertification could cause the loss of biodiversity, the diversity of species.
d all of the above.

Explanation:

• Option A: The text mentions that global temperatures (a part of climate change) are rising, deserts are expanding (desertification), so climate change contributes to desertification.
• Option B: It states that losing farmable land (due to desertification) means not enough land for humans to grow food (affects humans) and many plant and animal species could become extinct (affects plants and animals).
• Option C: "Many plant and animal species could become extinct" implies a loss of biodiversity (variety of species).

Since all options A, B, and C are supported by the text.

Answer:

D. All of the above.