The sun is the source of a. all energy for your body b. ultraviolet radiation that can cause cancer c. oxygen, which supports our breathing d. none of the above

answer: 21

step-by-step explanation:

divide 630 by 30. 30 goes into 630 21 times

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.