SUMMARIES.

RESOURCES OF ENERGY.

Many aromes schools, and businesses get heat by burning oil or natural gas. other burn coal and wood for haet. The heat comes from electricity. The electricity comes from a power plont. Heat from burning fossil fuels can be used directly. To heat homes, schools, business, and factories. Other sources of energy are moderm waterwheds, harnessing the wind, earth´s furnace.
A way to conserve every is by water, wind and solar energy.




LIVING THINGS AND THEIR ENVIRONMENT.


An ecosystem is all the living and nonliving things i an area interasting with each other.All living things need certain nonliving thing in other to survive. Plants and algae are called producers,they produce oxygen and food that animals need. animals are consumer. Fungi and bacteria are descomposer.All the organisms of a species living in the same area make up a population.The place where an organism live is called its habitat and the role of an organism in the community is its niche.

 


FOOD CHAINS AND FOOD WEBS.


The energy in the food is passed from one organism to another in a food chain. A food web is the onerlapping food chains.Consumer can be herbivores that eat producers and also eat plants and algae. Carnivore eat  other animal carnivores can be dogs, wolves, foses, cayotes, etc.predatores are living thing that hunt other living thing for food.the hunted are called prey. such meat eaters are the scavangers and other an animal eats both animals and plants an omnivores.