Activation energy is the amount of energy required to initiate a chemical reaction. The activation energy can be determined from reaction rate constants at different temperatures by the equation. ln(k 2 /k 1) = E a /R x (1/T 1 - 1/T 2).
Robins eat different types of food depending not only on the time of year, but even time of day. They eat earthworms early in the day and more fruit later in the day. Because they forage largely on lawns, they are vulnerable to pesticide poisoning and can be an important indicator of chemical pollution.
The beaks and claws of robins are sharp enough for them to perform  what they need to do to survive. For instance, they are able to use  their claws to climb trees and grasp â¦ prey and their beaks are sharp  enough to pierce insects and crack seeds. 2 people found this useful. Nibras Ahmed.