5. I placed the same 50mL of popcorn kernels in the freezer for 3 hours. I then repeated the test from #2 to see if the data for the kernels changed. If the kernels used oxygen either faster or slower this would
indicate that they are responding to the decrease in temperature.
Oxygen data
203
205
20.2
20.1
20.0
200
(s) o
(*) so
19.5
19.9
19.0
19.0
197
0
50
100
150
200
250 300
0
50
100 150
200
250
300
Time(s
Time (s)
Room temp kernels (blue)
Frozen kernels (green)
20.23%
20.6%
Beginning oxygen %
Ending oxygen %
19.87%
18.75%
Change (beginning - end)
Rate (change/time)
Carbon Dioxide Data

estuaries are the partially enclosed coastal bodies of brackish water formed at the mouth of sea where river meets an ocean. it is a transition zone between river and sea water so estuaries are influenced to both marine environment such as tides, waves and to riverine such as flow of fresh water and sediments. the mixing of sea and fresh water provide high level of nutrients, making estuaries a high product habitats.

many estuaries suffers degradation from a variety of human activities like erosion from deforestation, overgrazing, overfishing, drainage and eutrophication.

so from the above statement answers will be

1. false as estuaries are formed due to both brackish and freshwater.

2.true, due to high productivity estuaries are breeding ground for many marine species.

3. direct and indirect activities of man that contribute to pollution and deposition of sediments.

thats not a question

idk im sorry.

well first you need the sample of the temperature and gas level. i couldnt write a hypothesis unless i had some data. i think temperature changes will effect volumes of gas because gas changed into a solid or liquid at specific temperatures.