Answer:
Fuel cell electric vehicles are powered by hydrogen
they only emit water vapor and warm air
Explanation:
Answer:
Prophase
Explain:
The first step in mitosis, the nuclear envelope breaks down and chromosomes condense and become visible.
Electromagnets can easily be turned on and off.
Explanation:
An electromagnet produces magnetic field which is done by the electric current. These electromagnets contain a wire would like a coil. The current passes through the wire and the magnetic field is concentrated in the center which is the "center of the coil".
When the current is "turned off" the magnetic field "disappears". This shows that we have can have a control over the passage of current or the magnetic field. Thus, the "main advantage" of the electromagnet is that it can be easily turned on and off whenever necessary.
All of the above-mentioned facts are the risks that pests pose to the consumers. Pests are unwanted insects, which may infect food, as they are laden with pathogenic micro-organisms, they eat away the stored food, as a source of nourishment, and are difficult to manage. Pesticides are used to kill the, and they are chemicals, which may also pose serious threats, if consumed in large quantities.
Answer:
I'm pretty sure the answers for this is D, C, and B.
