Which of the following are periods in the geological time scale?
Check all that are true.

Paleozoic Era

Cenozoic Era

Precambrian Time

Darwinian Time

Mesozoic Era

precambrian time, and paleozoic era,

Explanation:

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1. loamy sand is about 80% sand with 10% clay and defined mostly by sand particles with some clay to provide structure and fertility. the sand particles are easily visible and the soil holds structure but breaks apart easily.

2. scott sand can improve his soil quality by incorporating more silt and organic matter into the soil. peat moss and organic matter can also be incorporated.