The strata of the rainforest that contains giant trees is called the 'Emergent Strata'.
Explanation:Rainforests are divided into layers based on the height of the trees in the layer. The 'emergent layer' is made up of trees that are up to 270 feet tall. It is because of the nectar and other food available on such trees, many birds prefer residing on these trees. These trees are generally hardwood trees like Brazil Nut and Kapok.
Rainforests are divided into distinct strata and vary from forest to forest:Emergent: The so-called emergent layer, or "sky," encompasses the crowns of spaced trees and their branches. In this stratum are the emerging trees over 40 m high that surpass the forest canopy.Canopy: Also called "canopy" is formed by trees of short spacing and high density.Undergrowth: Shrubs are characteristic of the "shrub layer", with smaller trees 5 to 20 meters above the ground.Herbaceous: In the "soil layer" is the smallest vegetation, as well as fallen trunks and fungi. It is characteristic for being a dark and humid place, where the process of decomposition of organic matter occurs.
The answer would be
D or emergents
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which strata of the rainforest contains giant trees that are much higher than the average...