Agriculture
What activity covers Earth's land more than any other human activity?
Agricultural activities cover more of Earth’s land surface than any other human activity.
If wastes are not disposed properly they affect ...
air, water and soil resources
What are the three reasons for human-caused changes in natural habitats?
habitat loss, habitat fragmentation, and habitat restoration.
Why are elephants in danger of extinction?
The elephant are in extinction, because some people is hunt him because she is searching his ivory, that is too expensive to buy
What is an invasive species?
These are species that are outside their natural area, in habitats other than their own and in small numbers, causing alterations in ecosystems
What is monoculture?
Monoculture involves planting large areas with a single highly-productive crop year after year.
One result of urbanization.
Increase in the production of sewage.
What is habitat fragmentation?
Habitat Fragmentation is the process in which development and agriculture can split ecosystems into pieces.
Are there laws created to prevent animals from becoming extinct?
Yes
What causes invasive species?
The invasive species is possible to cause some alterations to the habitat, sometimes to control a plague or to studies.
Why has the natural nitrogen changed?
It has doubled the amount thanks to today’s fertilizer manufacturing
What is the effect of large amount of sewage?
What is the purpose of habitat restoration?
Ecological restoration aims to recreate, in a degraded area, conditions that resemble as closely as possible the ecosystem that existed before it was disturbed.
What can be 3 reasons for humans to hunt animals?
Overpopulation.
For hunting as sport
For Food
Traditions
How does an invasive species end up in a habitat that is not its own?
This is caused by humans, because they move animals to a new ecosystem, to some objectives that he has.
What is used in monoculture and how does it affect the environment?
Large amounts of fertilizer and pesticide. When large areas are used for grazing, or to grow monocultures for long periods, fertilizers and pesticides can change soil structure and microbiomes in ways that degrade soil and prevent secondary succession.
Resonable amounts of nutrients can be absorved by ...
healthy ecosystems
What is considered habitat loss?
Habitat loss is when natural habitats are completely changed, species that once lived in that area either emigrate or disappear.
What is it that has caused humans to overfish the ocean? What consequence does it bring to the ecosystem?
Overfishing is caused by the excess of fishermen who do not respect the limits they have to fish, which can cause serious changes in the marine ecosystem, which will be harmed in that it can damage the food pyramid and cause overpopulation or extinction of some or after species of animals.
Why are invasive species so dangerous?
Because if they are not controlled they can destroy an ecosystem that is already created, since these species in general do not have a common predator and can become overpopulated and end that ecosystem.
Name at least 3 ways in which agriculture improves the environment
Preserve and restore critical habitats
Help protect watersheds
Improve soil health and water quality
Sewage is not poisonous but it does contain...
nitrogen and phosphorus
What causes habitat fragmentation?
Habitat fragmentation causes biodiversity loss and makes ecosystems more vulnerable to other disturbances.
A proper example of an invasive species?
Africanized bee, which is from Africa, as their name says, brought for the evolution of the species in America.