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Earth is made out of a lot of different materials inclluding silicon, iron, nickel, aluminum and other metals. Of course, it's atmosphere is made out of gases including nitrogen oxygen CO2 and Carbon monoxide.
Answer:
12. C. slight temperature range
13. B. little wind
Explanation:
Grassland biomes do not have a slight temperature range, they have a large one. It could be very hot in the day time but then quite cold at night.
Deserts do not have little winds blowing across them. These winds are usually strong and dry. The sand dunes in deserts were formed by these winds as they pick up sand particles and carry it to another area.
The simple answer is mucous cells. the stomach is lined with gastric mucosa and the intestine is lined with intestinal mucosa.