Structure of Sun:
The sun has six layers.
Three layers named as
• Corona
• Chromosphere
• Photosphere
These layers comprise the sun’s atmosphere or outer layer.
The other three layers namely
• Connective zone
• Radiative zone
• Core
Comprises the inner layer or part of sun that are not seen.
Structure of earth:
The structure of earth is divided into layers and these layers are both physically and chemically different.
The earth has an outer solid layer called crust, a viscous layer called the mantel, a liquid layer that is outer layer called outer core and solid center called inner core.
Answer:
C. K+ ions flow out the the guard cells and water flows out the cells.
Explanation:
The turgidity of the guard cells allows the opening and closing of the stomata. This is especially necessary when it comes to water conservation in plants. In order for the cells to become turgid or flaccid, there must be the influx and out ward movement of water via osmosis.
In order for this the occur the osmotic pressure of the cellular environment must change and this is done by changing the solute concentration.
The pumping in of K+ ions out the cell allows the solute concentration to decrease and this in turn encourages the movement of water across a concentration gradient through a semi-permiable membrane.
The water leaves the guard cells and they become flaccid. This causes the stomata to be covered.
In 1215, after King John of England violated a number of ancient laws and customs by which England had been governed, his subjects forced him to sign the Magna Carta, which enumerates what later came to be thought of as human rights
