PLEASE HELP
what happens to soil and baking soda in a cup

Mix your cup of cleaned soil with half cup of baking soda and mix well. Add half cup of distilled water to make soil's consistency a bit mushy. If it fizzes, bubbles up or foams up, your soil is acidic. If nothing happens when doing either test, your soil's pH is probably neutral

Explanation:

Explanation:Add half a cup of water, and mix. Then, add 1/2 cup of baking soda. If the soil bubbles or fizzes, the soil is highly acidic. The reaction you're seeing is the result of acidic soil coming into contact with an alkaline substance (baking soda).

answer : haversian

[explanation: -(compact bone is organized as parallel columns, known as haversian systems, which run lengthwise down the axis of long bones. these columns are composed of lamellae, concentric rings of bone, surrounding a central channel, or haversian canal, that contains the nerves, blood vessels, and lymphatic system of the bone)]