Nitrogen and hydrogen
N2 +3 H2 ---> 2NH3
hope that answers the question:)
Answer:
Because ticks stay attached to hosts, blood feeding for several days, they secrete novel pain killers, called kininases, in their saliva which help them go unnoticed. If you have been bitten previously, you may notice a small red bite mark, which can be itchy.
Explanation:
Much of Botswana and Namibia is covered by desert that can support few people. Botswana's climatic pattern is typical of southern Africa, although its rainfall is less than countries further east. As with Namibia, temperatures increase by about 6 degrees for every 100 m you descend. As a result, Namibia's park is hotter, especially those located in the desert. Rainfall is higher in the far North, including Etosha, and the Zambezi Region. Further south the climate is hotter and drier.
I would say as many as 500 kinds of corral and I say that because the Great Barrier Reef is one of the biggest reefs
