The answer is; B
When the ocean waters in the Pacific ocean warm up and the currents begin to move eastwards towards the Western South American coast, then an El Nino is declared. This phenomenon also shifts tropical storms eastwards due to the exchange of heat between the hydrosphere and the atmosphere. El Nino occurs in a cycle every three to five years.
13)C.
14)B.
16)A.
18)A.
19)C.
20)C.
21)D.
22)A.
23)D.
24)D.
HOPE THIS HELPS!!
The answers a
although this is a very strange question because its impossible for calcium (an element) to be alive since its just atoms
The desert biome is the driest where common floras are cacti, and faunas are snakes and lizards. This is commonly seen as a barren area of land where rain rarely occurs. The living conditions within this biome is very hostile for both plant and animal life. Animals survive by hiding under rocks and soil to protect themselves from the excessive heat of the sun.
Adenine and guanine are purine bases. These are structures composed of a 5-sided and 6-sided ring. Cytosine and thymine are pyrimidines which are structures composed of a single six-sided ring. Adenine always binds to thymine, while cytosine and guanine always bind to one another.