If it’s referring to sea floor spreading then the answer is D, I hate analogies but I think it’s talking about the mantle convection that slowly breaks away at the lithosphere
Scientists start with general observation and then make a hypothesis
Yes it is a carbohydrate found in plants
<u>Answer:</u>
<em>Several factors have to be considered while planting green roofs.
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<u>Explanation:</u>
<em>Green roof is a roof with vegetation growing in it. The vegetation is usually grown above a waterproof cover.</em> Many factors have to be considered while installing a green roof.
First is <em>sunlight availability</em>. While installing green roofs it has to be ensured that its location has adequate sunlight availability. If not the plants that require less sunlight must be chosen. The roof should be <em>flat or have low inclination.</em> The maximum allowable inclination is 30 degree.
The choice of plants has to be made according to the climate of the region. <em>The dry or wet nature of the region’s weather decides the type of plants grown there. </em>
