1. Fracking
2. Air pollutants.
3. Decomposition of organic matter e.g. in landfills.
4. <span>Chlorofluorocarbons </span>mainly in refrigerants and air conditioners.
Some vaccines are made out of egg proteins, which is why it is imperative for those administering them to ask if the patient has an egg allergy. Some vaccines may cause a severe allergic reaction. However, if hives are all the patient gets from eggs, the vaccines are still administered. If they get more than hives, they are closely monitored if given the vaccine.
In the age of exploration.... Prince Henry showed the Portuguese how to navigate by studying the sun and stars until later on, he showed them the compass navigation as the only technology advance which made possible for them.
The intrusive igneous bodies is classified by s<span>hape, size, and relationship to surrounding rock layers<span>.
</span></span>A rock that forms when magma hardens beneath earth's surface is called an-intrusive igneous rock. Sill is the commonly horizontal intrusive igneous body is formed when magma is injected parallel to sedimentary bedding planes
It might be because the Mexico is undeveloped country.Which means they have low quality of life,low HDI, education might not be provided, weak economy ,gender inequality and these reasons make country poor and the big reason is also that the government doesnt care about helping citizens in the country
