Question

Q If you have been given 20 banana leaves and one graph paper, a scissor and a balance, how do you calculate the leaf area of those 20 banana leaves.​

Answer 1

Answer:

The orientation of a surface, such as a leaf, influences the energy balance of the surface. The heat load of a leaf can also be influenced by air movement and by evaporation (transpiration) of water from a leaf. This will be discussed in more detail in Lesson 12. A small object will tend to be close to air temperature because of the limited boundary layer (ease of air flow around the object). A small leaf in a sunny and stressful environment may have less heat stress than an otherwise identical large leaf.

Figure 11.7 shows some leaves of the desert scrub oak (Quercus dumosa), a kind of oak that grows in California. In the arid West numerous oak species exhibit adaptation to the climate-some are deciduous (lose leaves seasonally); some are evergreen (live oak has leaves all year). The desert scrub oak variety, Turbinella, is an evergreen oak tree. The leaves stay green year round. It grows in places where it never, or very infrequently, freezes, often a hot and harsh environment. These leaves are thick, perhaps waxy. The oaks of the bottom of the Grand Canyon are similar.

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Explanation: