When the moon is between the sun and the earth it is completely in the shadows this lunar phase is called a

This is not a lunar phase, the lunar phases are caused by the earth casting a shadow on the moon, not the other way around. what you are describing is called a solar eclipse

no , per capita income is not a true measure of the development because: -it only tells us about average income not how income is distributed among the people.it only give us an idea of the economic aspect.it is only at the qualitative basis.moreover, income is not only the way of development other factors are also as much as important as income.

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