Answer:
internal migration: moving within a state, country, or continent.
external migration: moving to a different state, country, or continent.
Explanation:
All the options are correct.
If we look at the formula of prismoidal, we can see that it contains, three areas = area of faces at top and bottom and area of midway section
Thus it can be used to calculate the a) calculate surface area for cylindrical rings And b) estimate the surface area of edged non-prismoidal solids.
In the volume formula of prismoidal, the factor (depth/6) is multiplied by the three areas as mentioned above, this gives the volume of faces at top and bottom and midway section. Thus option C and D are also correct.
Answer:
Keeping lakes and rivers free of pollution.
Explanation:
Higher specific heat -Land
Lower specific heat - Water
Heats up faster - Land
Heats up slower - Water
Cools down faster - Land
Cools down slower - Water
The land is heating up faster, and also reaches higher temperatures than the water, but it also cools down much quicker, and reaches much lower temperatures than the water.
