Explain three ways that humans threaten biodiversity

Explanation:

Deforestation: It is a phenomenon in which landmass is cleared by removing vegetation to meet the demands of growing human population. Deforestation results in reduced habitat for other organisms thus their diversity and abundance decrease overtime in that particular area. If deforestation continues, it will lead to the elimination of many plant and animal species from the Earth's surface.

Greenhouse gases: Excessive burning of fossil fuel to meet energy demands leads to increased production of greenhouse gases in the Earth's atmosphere. This increasing proportion of the gases is causing Earth's climate to become warmer. Hence, many species that have not developed heat-tolerant mechanisms will not be able to survive in the long run and can threaten biodiversity.

Genetically modified organisms (GMOs): Production of GMOs is also a threat to biodiversity because GMOs gain the competitive advantage of survival with respect to other plants and animal species. They compete well for nutrients and use resources of other species as well. In the end, other species cannot survive and eliminated in the long run.

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explanation:

it provides an alternative energy pathway for the reaction to proceed.

a catalyst is a substance that speeds up the rate of a chemical reaction but is not consumed during the course of the reaction.

catalysts increase the rate of reaction without being used up. they do this by lowering the activation energy needed. with a catalyst, more collisions result in a reaction, so the rate of reaction increases. different reactions need different catalysts.

a catalyst works by providing an alternative reaction pathway to the reaction product. the rate of the reaction is increased as this alternative route has a lower activation energy than the reaction route not mediated by the catalyst.