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Flashcards in chapter 6 and 5 Deck (16)
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1

what is pollution

harmful materials released, into the air

2

what is acid rain

rain that contains higher than normal levels of acid

3

what is bioaccumulation

when toxins build up in a food chain

4

what is the carbon cycle

The cycle which carbon is used and reused through the ecosystem.

5

what can Rachel Carson be proud of

she made countries banned pesticides, because she found out that pesticides caused death of thousandths of hawks and eagles

6

why does the amount of water, on earth stay more, or less the same

because the only thing that changes are the stages of the water cycle

7

what is succession

the process of new species replacing new species in the ecosystem

8

what is biological control

the process of controlling insect pests with their natural enemies

9

what is introduced species

species that are introduces into an environment where they are not naturally found

10

what is primary succession

primary succession Is the gradual growth of organisms in an area that is previously bare

11

what is secondary succession

the gradual growth of organisms in an area that previously had a number of organisms.

12

what does heat have to do with new forests

heat actually helps new forests because plants grow better in soil that has been burnt

13

what is the leafy spurge

the leafy spurge is a biological control of pests

14

what is the spurge beetle

is a introduced species

15

what percent of al living things are are now extinct

90 percent

16

will you ever see a wooly mammoth

They say probably, not but they are trying to find out if the DNA from an elephant, the closest living relative can give birth to a wooly mammoth.