Answer:
a) An earthquake's focus is beneath the earthquake's epicenter
Explanation:
The earthquakes occur as a result of the adjustments that happen deep below the surface, where the crust cracks under the enormous pressure, and the gaps opened up from it are filled with other rocks. When that happens, the amount of energy that is released is enormous, casing strong vibrations that manage to reach the surface as well as cause a lot of damage. The place where the earthquake appears is called focus of the earthquake, and it is located deep below the surface. The place above it in a vertical straight line on the surface is called the epicenter. The vibrations spread around in concentric circles, being most intense near the place of origin, and weakening as they move further.
Is the distance that light travels in one year
A. This needs to be at least 20 characters
Answer:
Auxiliary data from existing landcover charts, aerial photos, photography, or AVHRR can also be used in conjunction with field visits to improve map precision predictions. This improvement in precision is achieved by the use of an improved prognosis widely used in polling surveys.
Explanation:
With no additional problems in the research methodology without any unnecessary field visits, basically major increases in performance can be achieved. The first and only additional cost of obtaining the auxiliary data is incurred. The time of loss could be used with the random sample or systematic selection when the intermediate process is available throughout the region defined by the map of the land use/cover.
Answer:
Aquaculture has been considered as an option to cope with the world food demand. However, criticisms have arisen around aquaculture, most of them related to the destruction of ecosystems such as mangrove forest to construct aquaculture farms, as well as the environmental impacts of the effluents on the receiving ecosystems. The inherent benefits of aquaculture such as massive food production and economical profits have led the scientific community to seek for diverse strategies to minimize the negative impacts, rather than just prohibiting the activity. Aquaculture is a possible panacea, but at present is also responsible for diverse problems related with the environmental health; however the new strategies proposed during the last decade have proven that it is possible to achieve a sustainable aquaculture, but such strategies should be supported and proclaimed by the different federal environmental agencies from all countries. Additionally there is an urgent need to improve legislation and regulation for aquaculture. Only under such scenario, aquaculture will be a sustainable practice.
