concepts 3

Question 1

3 improvements in the green revolution

Answer 1

biotech
farm equipment
fertilizers

Question 2

how do factories make acid rain

Answer 2

the pollution enters water cycle and lower pH of water, making it acidic

Question 3

whats DDT

Answer 3

insecticide

Question 4

bioaccumulation

Answer 4

the levels of toxins found in tissues of organisms rise as you increase levels in pyramid

Question 5

what does rising CO2 levells do

Answer 5

since its a greenhouse gas, the more there is in the atmosphere, the hotter it is

Question 6

green house effect

Answer 6

like a big lancet over the earth, keeping temperatures stable

Question 7

greenhouse gasses 3

Answer 7

methane
watervapor
CO2

Question 8

thermal expansion of oceans

Answer 8

the water levels on earth are rising, cuz as it gets hotter water molecules get more energy and water expands.

Question 9

ozone layer

Answer 9

layer in stratosphere of 03s that protect earth from UV rays

Why is it dying-we used to use CFCs that turn O3 into O2.

Question 10

habitat fragmentation

Answer 10

a barrier is formed hatt prevents organisms from returning to their home range

Question 11

invasive species-

Answer 11

introduced to a new ecosystem, could disrupt the food chain and other stuff

Question 12

umbrella species

Answer 12

protects other organisms (like keystone species) by preserving this, it’ll protect other organisms.