Answer:
Nadando.
Ciclismo.
Usando una bicicleta elíptica.
Caminando.
Remo.
Explanation:
For people who speak English
Swimming
Cycling.
Using an elliptical bike.
Walking.
Rowing.
The oxygen in the upper atmosphere combine to form ozone layer (o3) that allows to colonize surface water.
Explanation:
The fossil stomatolites are formed at about 3.0 ga laminated bacteria. they form the sediments to fall into a thin film of bacteria, these bacteria binds with the sediment and grows through it.
Cynobacteria uses water, CO2 and sunlight to create their own food and produce oxygen as a by product. The significance of stromatolites is that they are earliest fossil evidence life on earth.
They were first organism to photosynthesis and produce oxygen.
Coal mining causes massive land use, tailings (waste), pollution to the air and water, and the effects it can have on the workers mainly includes respiratory problems.
Some things that could happen to prevent pollution is to keep the area as contained as possible away from water outlets. Safer, environmentally friendly chemicals could be used instead of chemicals that pollute the air and water. Mining waste needs to also be properly disposed of and away from any water is could seep into.
Answer : The answer is false
Explanation: the statement was incorrect, the health being described is environmental health.
