1. what types of disturbances can pose a large threat to humanity?

Ecosystems are subject to natural disturbances such as fires, floods, droughts, and disease outbreaks, as well as human-caused disturbances, including oil spills.

Explanation:

Are all disturbances bad in an ecosystem? ... In restoration ecology, why might it be challenging to return a damaged ecosystem to original its state/function? ... 6.What have researchers learned about biogeochemical cycles by studying the Hubbard Brook watersheds?

Ecosystems are subject to natural disturbances such as fires, floods, droughts, and disease outbreaks, as well as human-caused disturbances, including oil spills.

Explanation:

because the two particles have an equal charge, the charges will cancel out and give the atom an overall charge of 0. so, if at atom has 35 protons in the nucleus, we could expect it to have 35 electrons orbiting that nucleus.