Cenozoic Era, Mesozoic Era, <span>Paleozoic Era, Precambrian Time</span>
Answer:
All three statements are sometimes true and sometimes false
Explanation:
The Moon orbits the Earth, with the same face always toward the Earth.
1. The moon is sometimes between the Sun and the Earth. At other times, it isn't.
2. The Sun shines on the back side of the Moon, but it also shines on the front side.
3. The side that faces the Earth is sometimes dark (New moon) and sometimes lit (Full moon).
The Three Economic Sectors. According to the three-sector theory, all economic activity can be classified into one of three sectors: the primary sector, the secondary sector and thetertiary sector.
Answer:
The invasive s p e c i e s tend to diminish the populations of native s p e c i e s because they outcompete them, and also manage to disturb the ecosystem.
Explanation:
The invasive species can or cannot be dangerous for the native biodiversity, but unfortunately, it is the second one that is much more common. The reasons as to why the invasive species tend to threaten the biodiversity are that they often don't have a native predator that will control their numbers, outcompete the native species for resources, and the native species don't have defense mechanisms against them. These factors result in havoc in the ecosystem in a relatively short period, with the potential to totally destroy it and changed it.
There are thousands of examples of invasive species around the world, some much more obvious than others. The Burmese pythons in Florida for example, have started to overtake the a p e x predator niche from the alligators by directly attacking them. On the other side of the world, in Australia, the cats and rabbits have contributed to leading hundreds of native species on the verge of extinction, and if there hasn't been human intervention there is a very high chance that a lot of native species would have been already extinct.
Yes it was formed by a glaciers.
