Answer:
nitrogen, phosphorus and potassium.
Explanation:
The three main nutrients are nitrogen (N), phosphorus (P) and potassium (K). Together they make up the trio known as NPK. Other important nutrients are calcium, magnesium and sulfur.
Answer:
Sensory cells last approximately two weeks and are renewed frequently.
Explanation:
Answer:
The bonds that will break at high temperature are hydrogen, ionic and Van der Waal's interactions. Covalent bonds will not break.
Explanation: