As the explore activity showed, you use a number different energy sources each day.
the heat from burning fossil fuels can be used directly to heat homes, schools, businesses, and factories.
Living things and their environment.
The explore activiy showed how living things and nonliving things interact in an ecosystem.
The right abiotic factors help make it possible for the organisms, or living things, in an ecosystem to survive.
food chain and food web
The Explore Activity showed that change in one population can affect several other population in the same ecossystem. This competition means that,in a ecosystem,many small food chains may overlab each other
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