When we mix sand and water, no reaction takes place. The sand simply settles down at the bottom of the water container. This is because sand is heavier than water and hence cannot float in water. ... In comparison, if we mix something like salt or sugar in water, they will react and make the water salty or sweet.
Answer:
The Archean Eon marked a time when Earth’s climate began to stabilize.
Earth cooled down from its molten state. It eventually could support oceans. Tectonic activity built continents.
In the Archean Eon, oxygen filled the atmosphere and most of the world’s iron ore was deposited.
Because the Earth’s conditions stabilized, eukaryotic and multicellular life could finally emerge in the Proterozoic Eon.
Explanation:
The excessive force of the blood that is being pumped within the blood vessels cause hypertension. This disease is often associated with an inactive lifestyle, poor diet, and genetics. First aid for hypertension includes putting a cold pack at the nape while elevating the leg higher than the level of the heart.
Phagocytosis is when a cell encloses a particle completely to form a phagosome. The process was originally evolved for the acquisition of nutrients by certain specialised cells. In multicellular animals, the process has been adapted to form a part of the immune system. Here, debris and pathogens are ingested by a macrophage, which then fuses with a lysosome to form a phagolysosome. Here, enzymes and toxic peroxides digest the pathogen.
