It is shaped by a Mediterranean climate (mild, wet winters and hot dry summers) and wildfire, featuring summer-drought-tolerant plants with hard sclerophyllous evergreen leaves, as contrasted with the associated soft-leaved, drought-deciduous, scrub community of coastal sage scrub, found below the chaparral biome.n its natural state, chaparral is characterized by infrequent fires, with intervals ranging between 10â15 years to over a hundred years.
Echo is caused by reflection of the sound from a broad and hard obstacle. The echo can be heard if the following condition is met. To hear a distinct echo, the time interval between original sound and the reflection must be at least 0.1s.
In the simplest cases, resonance occurs when the frequency of the external force approaches one of the frequencies at which natural oscillations occur as a result of an initial impulse. The nature of the resonance phenomenon is essentially dependent on the properties of the oscillatory system.The simplest resonance occurs in a system subjected to a periodic force when the systemâs parameters are not a function of the state of the system itself (a linear system). Figure 1.esonance. 1. sound produced by a body vibrating in sympathy with a neighbouring source of sound. 2. the condition of a body or system when it is subjected to a periodic disturbance of the same frequency as the natural frequency of the body or system.