The core has the largest density, being made of iron and nickel
The mantle has an intermediate density and the crust has the lowest density.
United States have over 500 million people living
Answer:
Constituents of Environment
# Physical elements constitute space, landforms, water-bodies, climate, soils, rocks, and minerals. ...
# Biological elements include plants, animals, micro-organisms, and man.
# Cultural elements include economic, social and political conditions which are largely man-made features.
Explanation:
Brainliest please
