Answer:
The nitrogen cycle, the water cycle and the carbon cycle
Explanation:
All of the above :)
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Human activity impacts the carbon cycle by introducing more carbon dioxide into the atmosphere: carbon dioxide accumulates in the atmosphere, changes temperatures and alters the salinity levels of oceans, disturbing the salt and water balance equilibrium that supports proper growth of marine plants and animals.
<span>An anthropologist finds a fossil in Africa that is 100,000 years old. The specimen could belong to the species: Homo sapiens.</span>
<span>The correct answer is C. Whilst desert animals such as camels have evolved an internal 'air conditioning' system to help them stay cool, this is a process focused on keeping the brain cool whilst the rest of the body is hot, to ensure the animal's vital organs can function even in high temperatures. The alternative answers for this question all focus on the aquiring and retention of water.</span>
