Answer:
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1) protons have a positive charge
2) electrons have a negative charge
3) neutrons have a neutral charge
It is the atomic number of the element, which is <span>the number of protons in the nucleus of an atom that determines the chemical properties of an element. </span>
Answer:
An agricultural drone is an unmanned aerial vehicle used to help optimize agriculture operations, increase crop production, and monitor crop growth. Sensors and digital imaging capabilities can give farmers a richer picture of their fields.
Explanation:
Drones can help farmers to optimize the use of inputs (seed, fertilizers, water), to react more quickly to threats (weeds, pests, fungi), to save time crop scouting (validate treatment/actions taken), to improve variable-rate prescriptions in real time and estimate yield from a field.
In a chemical reaction, there is a change in the composition of the substances in question; in a physical change there is a difference in the appearance, smell, or simple display of a sample of matter without a change in composition.