When an invasive species alters the community structure it is introduced to, what can the consequence be?
extinction of economically important species
reduced predation on some native species
increased predation on some native species
all of the above

All of Above

Explanation:

Invasive species are the non-native species that are introduced into a new habitat. Some of the invasive species are able to thrive in the new environment by exploiting the available resources as they do not have their competitors and predators in the new habitat.

In absence of any check on their growth, these invasive species compete with native species for resources and may even cause the extinction of valuable, rare and endemic species.

For example, 300 endangered species and 263 other native species are reported to become extinct from Hawaii due to invasive species. Some of the invasive species affect the population and survival of single prey or host species and thereby change the parasitism or predation respectively.

they had the law tat factories that produces smoke cannot be built near residential buildings.

building of proper sewage system was done to ensure that the waste is carried away from the humans so that they do not get diseases from it.

also they built water systems to provide water in those areas which are drought prone.

the circled areas are referred to   as sunspots.   the sunspots are cooler than the   surrounding area.

sunspots are temporary phenomena on the photosphere of the sun that appear visibly as dark spots compared to surrounding regions. they correspond to concentrations of magnetic field flux that inhibit convection and result in reduced surface temperature compared to the surrounding photosphere.