1.by cutting down trees
2.<span>natural activities affect the earth through the poisonous gases emitted during volcanic eruptions which kill about hundreds or thousands of forest inhabitants like the animals for example. also, it destroys farmlands
3.</span><span>Removing natural resources ie Coal, Oil, Gold, etc
</span>
4.<span>building things on/in it. IE homes/buildings/streets
5.</span><span>using and or contaminating the water supply</span>
Answer:
i think its the last one hope this helps
Explanation:
he two countries that once formed Czechoslovakia were Slovakia and the Czech Republic.
Once part of the Austro-Hungarian Empire and consequently part of the Soviet Union, the dissolution of Czechoslovakia accompanied the disintegration of socialist federal states. On the opposite of what happened with USSR and Yugoslavia, the separation of Czechoslovakia occurred without any violence on 1 January 1993.