<span>Desertification is the cancer of the earth,” Argentine geographer Elena Abraham told IPS. “It is a process of degradation that does not manifest itself in spectacular ways but furtively advances, and by the time it is visible there is nothing to be done, and people have to move away, in search of an alternative.”</span>
Ecologists make models to gain insight into complex phenomena such as the effects of global warming on ecosystems.
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Striking a matchstick as after it strikes it gives off both heat and light.
Answer:
Some animals have camouflage which helps them not get eaten.
Explanation:
