The metalloids The metalloids are semi-metallic elements that have the properties of both metals and nonmetals, It is difficult to know the metalloids from their outermost electrons due to the difference in the numbers...
The adaptation Many species had adapted to the environmental changes, So they had succeeded in the continuation of life, Some of the organisms could not be adapted to the environmental changes, So they perished...
The elements The uses of the elements in our life depend on their properties. The elements are very important in our life, And we use them in many applications.
There are a lot of birds and they spread out all over the known environments on Earth. They are adapted to their environments, modes of living, and getting of food through different ways such...
