Question
Which of the following leaf modifications occur (s) in
the desert areas to inhibit water loss? 1. Hard and waxy leaves 2. Tiny leaves 3. Thorns instead of leaves Select the correct answer using the code given below:Solution
All statements are correct : The vegetation of hot desert climate is xerophytic which has special characteristics to withstand very high rate of evaporation. They have long roots, thick barks, waxy leaves, thorns and little leaves. The leaves are leathery and have a waxy substance on top to prevent water loss through the epidermis. Many xerophytic plants have small leaves and thorns. Spines protect the plant from animals, shade it from the sun and also collect moisture
The statement, "The elasticity of demand may be defined as the percentage change in quantity demanded which would result from 1 percent change in price"...
 The above curve is a
If the firms under perfect competition have different costs, abnormal profits can be earned in the long run only by
Who introduced the concept of elasticity of demand?
When the economist speaks of an increase in demand, he is usually referring to a ____________________
Pricing decision includes
A movement along a demand curve indicates that a different quantity is being demanded
This movement is due to
Movement along a demand curve as a result of change in price is known asÂ
Under price discrimination, price will be higher in the market where demand is
Shifts in demand curve as shown in the figure below represents
