Answer: Soil ph is a measure of acidity or basicity of a soil, measured in a slurry of soil mixed with water.
Explanation:
Answer:
Lunar eclipses
The only shape that casts a round shadow no matter which direction it is pointed is a sphere, and the ancient Greeks deduced that this must mean the Earth is spherical.
Explanation:
Answer:
entre la ubicación y la geografía tradicionalmente no ha existido una relación fuerte aunque esta
Yes topaz is natural and formed and earth.
