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.
Answer:
By creating support groups that allow members to share strategies for living well.
Explanation:
Tertiary prevention is about reducing the impact of an ongoing illness or injury that has lasting effects on the patient. This can be done by helping people manage long-term health problems and injuries like chronic diseases, permanent impairments, just to mention a few in order to improve their ability to function, their quality of life and even their life expectancy.
Meaning that the support groups created by the nurses would serve as a medium for disseminating quality information about lifestyle improvements and also allows communication of ideas.
The correct option is B. Hepatitis B is a serious liver infection that is caused by Hepatitis B virus. The disease can be transfer to others through contact with body fluids such as blood, semen, etc. It can also be passed from mother to a new born and through sharing of sharp objects. There is vaccination for prevention of the disease but there is no cure for it yet.
Answer : part of the male reproduction system
Explanation: the testes are where the sperm are produced
Answer: Mainly it is the zone or layer the covers the earth most times it bouces somewhat off the earth but thanks to carbon the layer has slowly opened up this is the main factor becuase the sun is constantly shooting rays of light that would harm you but thanks to the earth's layers we dont get harmed by it.
even asteroids will sometimes survive when entering the earths atmosphere and can leave deadly disease or harm the layer
Explanation:
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