Answer:
Hello
Topsoil consists of most weathered mineral and organic material. Biological agents are also responsible for the breakdown of complex organic matter which releases simple nutrients. This process of mineralisation make soil fertile.
Explanation:
Fossils form only when organism dies and suddenly buried in low oxygen environment. ... When sedimentary rocks are deep buried in the earth due to pressure above and temperature it turns into metamorphic rock and fossils destroy . Due to this rock cycle , fossil record has been lost.
4I₂+9O₂= 2I₄+2O₉
Reactants: 8 iodine, 18 oxygen
Products: 8 iodine, 18 oxygen
Balanced!!
Answer:
b)
Explanation:
the data for the average height of the plants in all three trails contains error
