Write at least two facts about Earth's salt water.

70% of the world is covered in salt water. This makes salt water ecosystems the largest on earth. It is estimated that almost 50% of all known species on earth are supported by salt water ecosystems. It is believed that there may be millions more species in the oceans that have not yet been discovered. 96.5% of all the Earth's water is contained within the oceans as salt water, while the remaining 3.5% is freshwater lakes and frozen water locked up in glaciers and the polar ice caps. Sodium, found in salt water, is an essential mineral. It helps regulate fluid balance and is required for muscle and nerve function. The body also uses sodium to control blood pressure and blood volume. However, Cecere warns that too much salt can lead to high blood pressure and cardiovascular disease.

Explanation:

Hope this helps!

european feudalism was a combination of legal and military customs in medieval europe that flourished between the 9th and 15th centuries. broadly defined, it was a way of structuring society around relationships derived from the holding of land in exchange for service or labour.

japanese feudalism. the era of feudalism in japan took place from the 12th through 19th centuries. during that period local rulers, either powerful families or military warlords, dominated the land, while the emperor was merely a figurehead and not a significant political presence.

this statement is true.

forests are public goods, available for everybody. when usage of such a good becomes interesting for consumers and its usage increases, there can be a risk of overexploitation. it is a non rival good therefore, if one person consumes the good it does not reduce the availability for subsequent consumers.

these caracteristics require the establishment of measures in order to prevent the destruction of a commonly owned space, for example, to restrict the amount of people that have access to the same time.