Answer:
1. True. 2. True. 3. True. 4. True.
Explanation:
All of these are true! Although, the first is touchy because on occasion, a newly introduced species can actually have a very positive impact on the environment; take, for example, bringing the common earthworm to the United States. This brought new food for previously established species, enhanced growing ability of the soil, and many more benefits. Then let's look at the opposite end of the spectrum; how about the introduction of asian lady beetles? Although they have had good impacts on the control of aphid infestation, they have unfortunately began to infest areas as well. Many Northern American homes have asian lady beetle infestations in their homes or storage buildings. This is a very tame example of negative species introduction because unlike other harmful species, asian lady beetles do not reproduce indoors, eat clothing or wood, or have any negative impact on the health of humans or other species except for that sometimes they stink a little.
Number two is also true. For many organisms, human agriculture and advancement has destroyed habitats, resources, and food supply. This is true for species like giant panda bears, who have limited meals and are endangered due to human harvesting of bamboo shoots/wood, which is their main diet.
The description of slash and burn agriculture is correct.
Slash and burn agriculture is also very detrimental to the wellbeing of the planet and its species; since these forests were originally habitats for creatures of all kind, the immediate destruction of them can be absolutely devastating for that habitat and the creatures that were previously living in it, who no longer have homes.
I hope this helped!
