Answer:
population density I hope this helps
Answer:
compound can be broken down into smaller compound or their basic element by chemical change
Answer:
In general, soil contains 40-45% inorganic matter, 5% organic matter, 25% water, and 25% air. In order to sustain plant life, the proper mix of air, water, minerals, and organic material is required. Humus, the organic material in soil, is composed of microorganisms (dead and alive) and decaying plants.
Explanation:
M+90=150
minus 90 in both sides
m=60
Correct answer is 2 - To breathe
