9. A TERTIARYOR SECONDARY SOURCE OF ENERGY OFTEN OVERLOOKED IS .

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all soils contain mineral particles, organic matter, water and air the combinations determine the soil's properties – its texture, structure, porosity, chemistry and color. soil is made up of different-sized particles. sand particles tend to be the biggest.

take a break move to stretching and slowly work back into physically exercising if the problem continues go to a doctor or physical therapist