Answer:
Plate tectonics may be defined as a type of the scientific theory that describes the large motion of the plates. The outermost layer of the lithosphere breaks into the tectonic plates.
Plate A is 10 million years old and plate B is 200 million years old. Plate B will be subducted because the old plates more shows subduction when colloided with each other. This is because the older plates are more cooler that makes it more dense and shows large subduction.
Cogon grass is an invasive grass that is considered a pest in 73 countries and a weed of 35 crops worldwide. As a perennial grass weed, it is an inferior forage grass that negatively impacts biodiversity. It creates a very competitive environment for commercially-important species and <span>displaces native animal and plant species. Cogon grass can also alter fire regimes. </span>
In many larger organisms, evolution has favored lungs and a digestive tract with more branching or folds. Evolution is the change in the characteristics of a species over several generations and relies on the process of natural selection. The heritable characteristics of biological populations change over successive generations with a diversity at every level of biological organization, including the levels of species, individuals organisms, and molecules.
Answer:
The correct answer is - Boron, a metalloid.
Explanation:
Boron is a metalloid element that has a crystalline shiny black appearance. It is found in solid-state in nature, It is also a micronutrient for the humans. It is placed in the second period of the periodic table of elements.
The electronic configuration of the boron element is - 1s2, 2s2, 2p1, as it is clear that they have 3 valence electrons in their outer shell, and by electronic configuration, it is clear that they are in 2 energy level (2).
Thus, the correct answer is - Boron, a metalloid.
