What is an ecological issue? How is this issue an ecological issue?
How does it relate to conservation?
What can citizens do to help?

an ecological issue is harmful effects of humans

Explanation:

for example, climate change, it's an ecological k issue because humans help speed up the natural warming cycle of the planet by emitting more carbon dioxide than the earth can handle with all of it's trees being cut down. it relates to conservation because humans are using the resource of wood like it will just keep coming back, but that takes time. they aren't conserving the resource. citizens can help by using less gas and energy to slow the output of carbon emissions

well, paralell is parallel. i am providing links to .

hope this !

a series circuit is one with all the loads in a row. there is only one path for the electricity to flow. if this circuit was a string of light bulbs, and one blew out, the remaining bulbs would turn off.

unlike in series circuits, a charge in a parallel circuit encounters a single voltage drop during its path through the external circuit. the current through a given branch can be predicted using the ohm's law equation and the voltage drop across the resistor and the resistance of the resistor.

a parallel circuit has certain characteristics and basic rules: a parallel circuit has two or more paths for current to flow through. voltage is the same across each component of the parallel circuit.

the answer to your qyestion is vincent van gogh.