A loccaliths
Because of this, it is often difficult to determine what it is you are looking at for intance devils tower in wyoming was thought to be a volcanic neck but furthur study it should be an eroded liccalith
The two biggest aspects of the global climate change that impact the forests are the temperature and the precipitation. The temperature increases globally, this affects the forests because the trees are adapted on certain temperatures, but now are faced with rapid increase of the same, and the time for adaptation is much shortened, so lots of forests degrade or gradually die off. The precipitation is a crucial factor for all plants. The forests are on places where there's sufficient amount of precipitation, but now lots of regions in the world are suffering from reduced precipitation, this also causes the degrading and dying off of the forests.
A drought is an event where there are shortages of water supply. The water in question can be atmospheric, surface water or ground water. A drought can last for months or years, but sometimes for a few weeks. It can cause big problems and crises in a lot of countries.
Desertification is the process by which fertile land becomes desert typically as a result of drought, deforestation, or inappropriate agriculture. Desertification is a big problem in a lot of places, because deserts are getting bigger and people are loosing good land that can be used because of it.
Population density is the study of how many people live in some area as compared to other areas - this helps for example predict whether the area can preduce enough food for itself. It is measured in the number of people per a unit of area.
The correct answer then is:
<span> the number of people who live in a square mile or kilometer</span>
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.
