Answer:
Option-C
Explanation:
Desertification refers to the formation of barren land from the arid land due to many factors which could be climatic or anthropogenic. The climate factors include no rainfall, arid conditions, less water and water bodies, overgrazing by animals and many others.
As a result of these factors, the plants die or are unable to hold the soil. This leads to loosening of soil which causes soil erosion. This converts the fertile land into infertile land and the land becomes barren.
Thus, desertification is the correct answer.
The Correct Answer: C)
Because...
Each carbon is identical, they all have four valence electrons, so they can easily bond with other carbon atoms to form long chains or rings. In fact, a carbon atom can bond with another carbon atom two or three times to make double and triple covalent bonds between two carbon atoms.
Answer:
Hydrogen bonding
Explanation:
The newly synthesised proteins as a result of the process of translation are linear structures formed by linear arrangement of amino acids.
The linear structure of a protein is known as the primary structure which changes its conformation and take the shape of either the helix or the pleated sheet. This helical or pleated sheet structure is known as a secondary structure.
The secondary structure is formed due to the bond formed between the hydrogen of the carbonyl group and the amino group which form the backbone of the protein structure. The hydrogen bond causes the linear polypeptide to form spiral helical or bend pleated sheet.
Thus, Hydrogen bonding is the correct answer.
Answer:
Number and variety of living organisms; includes genetic, species, and ecological types.
Explanation:
Biodiversity is the number and variety of living organisms. This includes genetic, species, and ecological types.
The phylum that is referred by the description above is the ECHINODERMS. The echinoderms are considered as invertebrate organisms found in the ocean, this means that these organisms do not have skeletons. The most prominent feature of the echinoderms are their spikes and spines. Examples are sea stars or starfish and sea urchins.