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LiRa [457]
2 years ago
14

Data about our past climates is contained in...

Biology
2 answers:
ipn [44]2 years ago
6 0

D. ice core samples for the arctic and anarctic

Ivanshal [37]2 years ago
5 0

Answer:

Sediments are the most commonly studied paleoclimate archive. Their ubiquity spans marine, fresh water, and land environments and extends back nearly 4 billion years. Layers of sediment contain many clues to what the climate was like at different time scales in the past.

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Humans have fished the prawns and small fish in an estuary to near extinction. Describe the impact this could have on the bacter
Yuri [45]

Answer:

Overfishing is one of the major concern no a days in aquatic systems. overfishing is resulting in the extinction of aquatic organisms and it can lead to several damage to other living organism.

Prawns and small fishes are important organisms in food web or in aquatic system as they maintain the bacterial level or other microorganism level in control.

Prawn and small fishes utilize oxygen and nutrients present in water to survive, if they will get extinct the amount of nutrient and oxygen left will be used by the bacteria and mold living in the system which can have bad impact on human and other organism.

Heron and pelican populations depends on prawn and small fishes for survival as they feed on them and when there will be not sufficient population of  prawn and small fishes, there are chances that heron and pelican populations can also get extinct.

6 0
3 years ago
The chart shows the total amount of nitrogen oxides (NOx) and sulfur dioxide (SO2) that coal-fired utilities emitted between 199
horsena [70]

Answer:

Yes.

Explanation:

If the graph line comes lowers from 1999 to 2013 so it means that steps taken by the EPA and the factories were effective in reducing air pollution. The steps taken by the EPA and the factories were effective in reducing air pollution occurs from two pollutants i. e nitrogen oxides (NOx) and sulfur dioxide (SO2) if they install chimneys which collect these gases and reduce pollution. if the factories uses coal having less concentration of sulphur so less air pollution occurs.

4 0
2 years ago
Read 2 more answers
Refer the the graph below showing the absorption spectrum of chlorophyll a. Explain what the graph is showing
Stella [2.4K]

Answer: The graph shows that chlorophyll a absorbs light principally around 420-450 nm and 650-680nm wavelengths

Explanation: Chlorophyll a is a pigment found in plants that traps light energy for use in photosynthesis. Chlorophyll a absorbs light mostly in the blue and orange-red wavelengths. This is shown in the graph, where the peaks are around the 400nm and 600nm wavelengths, corresponding to blue and red in visible light.

This absorption means the pigment is 'excited' by this light, sending into a higher state if energy which provides energy for the reactions of photosynthesis.

7 0
3 years ago
All the different plant populations make up the plant ___________ in this swamp. The plants are part of the bigger __________, t
hodyreva [135]
I the answer is C. A community is more than one individual organism or animal and a ecosystem is the study of how an organism or animal is interacting with others
5 0
3 years ago
-<br> . Glucose Lactic Acid + 2 ATP<br> 1. What is the name of this formula?
olga2289 [7]

Explanation:

anaerobic respiration as per my opinion .

hope this will be helpful to you.

4 0
3 years ago
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