Answer:
Explanation:
At the autumnal equinox.
At the equinox. , duration of day and night are equal all over the globe . It happens because sun is just over the equator , going towards the south .
After 6 months of night , day starts breaking in southern hemisphere. For next 6 months there is likely to be day in the south pole.
The sun will be seen near the horizon moving on a circular path all through the day parallel to the horizon without setting.
The biodiversity and species richness has almost exclusively positive effects in every aspect, lot of which are of huge importance and benefit for the humans.
Explanation:
The biodiversity and species richness is basically the amount of species that inhabit a particular ecosystem, while on global level it represents all of the species on the planet. The more species there are on the planet, the better, and vice versa, the less species there are, the worse. The reason for this is that pretty much every species provides some benefits, which are good both for nature and for the humans. The befits can be seen from several different aspects, such as:
- economic
- agricultural
- medicinal
- ecological
The economic benefits are seen in the fact that lot of species are very interesting and attractive to the people, so some sectors, such as the tourism directly depends on the biodiversity in lot of parts in the world. For the agriculture, it is good that the biodiversity is high, as that means that the pests will be naturally regulated by their predators. The medicine is directly dependent on the biodiversity, as it relies on lot of species to produce the medicines, and if they are gone, this industry will crumble. From ecological aspect, the biodiversity and species richness is important because the communities of organisms will remain as they are, function without any problems, and be in prefect balance.
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Answer:
A.
Explanation:
Cities are marked by dots, points, on maps.
The answer to the item above is letter "C. surface". Surface waves are mechanical waves that propagate in the interface of differing media. These waves very usually have larger altitudes and longer wavelengths than the body waves.
