Answer:
b. Tall oak trees
Explanation:
In order for the owner to be able to have energy benefit for the home in a place with hot summers and cold winters, the most practical thing would be to have tall oak trees in front of the large glass windows on the southern side. The reason for this is that the oak trees will be beneficial in both seasons. During the hot summers, the oak trees will provide a lot of shade, thus lowering the temperature on the southern side where the large glass windows are. During the winter, the oak trees will have no leafs on them, meaning that the southern side will be able to get the needed sunlight in this period. We come to a situation where the oak trees will reduce the energy spending for cooling down in the summer, and it will reduce the energy spending for warming up in the winter.
Answer:
growth rate will be 4.5 %
So option A is correct option
Explanation:
We have given immigration = 50
Emigration = 20
Birth rate = 25
Death rate = 10
Each per 1000 people
We have to find the percentage growth rate of this country
Percentage growth is given by immigration - emigration + birth rate - death rate
So percentage growth rate = 
%
So growth rate will be 4.5 %
So option A is correct option
Dark matter makes up about 27% of the universe.
The Troposphere, Stratosphere, <span>Mesosphere, Thermosphere, and the Exosphere</span>
