Answer:when you need to replace cells that are old lost or broken
Explanation:
Answer:
Rate of soil loss that is not higher than the local rate of soil formation
Explanation:
A "sustainable" rate of soil loss means <em>"the rate at which soil is lost from a surface is not higher than the local rate at which soil is formed at an area."</em>
We can determine whether a given farm was practicing a sustainable use of soil or not by merely measuring the amount of topsoil at the given farm.
Answer:
the answer is wave action
Explanation:
The presence of palpable lymph nodes.
Lymph nodes are relatively large in children, and the supperficial ones often are palpable even when the child is healthy.
Answer:
fertilizers
Explanation:
Plants use nitrates as a supply of nitrogen, which is needed to make proteins for healthy growth. Plants absorb nitrates in water through their roots. Nitrates are present in high levels in plant fertilisers. Without nitrates, the amount of chlorophyll in leaves reduces.
