All of the following will be damaging to the environment except increasing lead emissions. pouring petroleum into steams. adding fertilizer to stimulate aquatic plant growth. putting research and money into renewable energy.

putting research and money into renewable energy.

Explanation:

Increasing the lead emission is likely to cause pollution in air, water and soil.

Pouring petroleum to steams will also cause steams pollution.

Addition of fertilizers to stimulate plant growth will likely to increase the abundance of toxic chemicals in land and water which will lead to contamination of land and water. All these situations are responsible for damaging the environment.

Putting research and money into renewable energy will not cause damage to the environment. As the energy harnessed by the renewable sources of energy like solar energy, tidal energy, geothermal energy will not produce pollution.

Directly proportional:

A proportion of two variable quantities. when the ratio of two quantities are constant.

inversely proportional:

when one value decreases at the same rate that the other increases.

Explanation:

I hope this does help you, have a great day. :)