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Earth's mass has remained constant, and thus the gravitational pull at the surface has decreased over time; Earth's mass has grown with the volume in such a way that the surface gravity has remained constant; Earth's gravity at its surface has increased over time, in line with its hypothesized growing mass and volume.
The telephone and the light bulb
i believe the answer is positive because they sound happy
The Caste System
The term "caste" is used to describe stratified societies based on hereditary groups not only in South Asia but throughout the world. Others might present a biological explanation of India's stratification system, based on the notion that all living things inherit a particular set of qualities.
Answer:
D. Americans believed they had a religious purpose to spread over the entire continent.
Explanation:
After the independence, recognized by England in 1783, a huge , unexplored and uncolonized territory lay west of the territory of the original US 13 colonies. Some movements and leaders of the Second Great Awakening encouraged pushing the frontier and settlement in the west.
