Green roof do have several advantages over ordinary roofs as follows.
<h3><u>Explanation:</u></h3>
Green roof are defined as the roof over which a thin layer of soil is placed to grow a thin layer of grass or other plants. This have several advantages as follows:
A. Green roof help in reducing water logging in roofs, thereby reducing the dampening of the concrete, and increasing the longevity of the roof.
B. It is actually energy saving, by reducing the summer temperatures by evaporation and transpiration. It also maintains a warm room temperature in winter by reducing the heat loss.
C. It's also actually low in budget. Its initial cost is more than ordinary roof, but the maintenance cost is very low, if not nill.
D. Its a place for recreational activities. Greenery in urban areas are very rare sight, which can be met through this project.
E. Green roofs provide a chance for urban agriculture.
Answer:
b. Cu cât se adaugă mai mult catalizator, cu atât viteza de reacție este mai RMEA
Explanation:
Answer:
1. BB x bb
2. 100% black
Explanation:
Heterozygous offspring would have the genotype Bb. In order to produce offpsring that are 100% heterozygous, that means each parent must be homozygous. Therefore, the genotypes of the parents are BB (black rabbit) and bb (white rabbit). See punnet square attached.
The phenotype refers to the expression and display of the genotype. We will assume that because black is denoted by a capital B, and white by a small b, that black is the dominant allele. Therefore, if 100% of the offspring have the genotype Bb, then 100% of the offspring have the phenotype of black fur.
4.3 Agricultural land. At present some 11 percent (1.5 billion ha) of the globe's land surface (13.4 billion ha) is used in crop production (arable land and land under permanent crops). This area represents slightly over a third (36 percent) of the land estimated to be to some degree suitable for crop production.
