Answer:
- At equilibrium, the quantity of a commodity demanded is the same as the quantity of that commodity supplied. i.e. QD = QS. The price at which QD = QS is the equilibrium price.
- When there is a shortage, the quantity of goods demanded would be greater than quantity supplied, as the price falls below the equilibrium price. i.e. QD>QS
- When there is surplus, the quantity of goods demanded is less than the quantity supplied, as price increases above the equilibrium price. i.e. QD<QS.
For example, in the table showing the demand and supply schedule for T shirt at different prices (see file attached), the equilibrium price for a unit of T shirt is $3, at equilibrium, QD = QS (i.e. 30 = 30).
A shortage is recorded when the price of T shirt falls below equilibrium price of $3 as shortage of T shirt is recorded, i.e. @ $2, QD>QS (40>20). A shortage of 20 is recorded.
Surplus occurs as price increases above equilibrium price of which QD<QD, i.e. @ $4, a surplus of 20 is recorded.
Answer:
a hypothesis is an educated guess or an assumption made before any of the research has been done.
a theory is a substained explanation for an occurrence.
a scientific law describes what has happened.
Explanation:
Answer:
A substance will enter into a cell through diffusion if a concentration gradient is present. The process of diffusion will only occur if the concentration of a substance is higher outside the cell as compared to the inside of the cell. Diffusion is the movement of particles along the concentration gradient i.e from an area of higher concentration to an area of lower concentration.
The movement of molecules against a concentration gradient is termed as active transport.
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The answer is True. Hope this helps