Which best explains why a decrease in the types of insects in an ecosystem reduces the sustainability of the ecosystem? Organisms that depend on insects may not survive, eventually harming all the organisms that are interconnected.
The biodiversity of the ecosystem cannot be protected by laws unless there are a certain number of insect species.
There will likely be fewer insects that harm plants, causing an increase in plant diversity.
Having fewer insects allows other organisms to use the resources that the insects were using.

What element does susan b. anthony include in this passage to strengthen her argument?

1. emigration the movement of people from one place to another 2. immigration a situation in which resources are being used up at a faster rate than they can be replenished 3. migration the leaving of one's homeland to settle in a new place 4. overpopulation the movement of people to a new country 5. sustainable development a situation in which the birth rate is not sufficient to replace the existing population 6. underpopulation the ability to meet current needs without reducing the ability to meet future needs 7. unsustainable development the increase in the population of a city 8. urbanization a situation in which the number of people exceeds the available natural resources in an area

Which statement names a physical property of wood? wood does not rustwood can burnwood can rotwood is softer than coal