Which has the greatest effect on the current decline of biodiversity?
a. plants
b. animals
c. global warming
d. humans

Id say D 

we humans have scaped the earth as we pleased for millions of years tearing down everything in our path to build cities and other habitates for ourselfs 

everyday we humans cut down trillions of plants and trees reducing biodiversity 

by scaping the earth with with very little limitations we have taken the habitats of most species and destroyed them 

by starting the industrial age and burning fossil fuels have aggravated global warming that is affecting so many species due the earths climate changing 

hope that helps 

Alright, i'm gonna try to explain this as good as possible. the law of conservation is like a collection overtime. it never changes though. no matter how you change the constituent parts.