Electromagnetic fields travel by transferring energy: 1) from particle to particle.
2) between electric and magnetic fields.
3) between magnetic fields only.
4) between electric fields only.

between electric and magnetic fields is answer

Electromagnetic fields travel by transferring energy between electric and magnetic fields.

Explanation:

The electric and magnetic fields are perpendicular to each other and are also perpendicular to the direction of propagation of the wave.

it is a good conductor

explanation:

acid rain does not usually kill trees directly. instead, it is more likely to weaken the trees by damaging their leaves, limiting the nutrients available to them, or poisoning them with toxic substances slowly released from the soil. the main atmospheric pollutants that affect trees are nitrates and sulphates.