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Cloud [144]
2 years ago
5

Lillian wonders how fast a train can move around a particular curve before it falls off of the track. Which of the following is

the best way for Lillian to figure this out?
A.Drive a train along a curve at different speeds until it falls off of the track.
B.Build a model train and track, and test one train going around one curve at different speeds.
C.Build a model train and track, and test one train going around several different curves at one speed.
D.Build a model train and track, and test different-sized trains going around one curve at the same speed.
Biology
2 answers:
Murrr4er [49]2 years ago
5 0

Answer: B

Explanation: For Lilian to achieve this she needs to build a model train and track, then test the train going round the curve at different speeds intervals. This would help determine at which speeds the train tends to fall off

weeeeeb [17]2 years ago
4 0
I would say B.

A, umm, don't crash trains, that's bad.

C, Lillian is wondering how fast a train can go, not at what curve will it fall.

D, Lillian isn't wondering about the size of the trains, just the speed.
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Humberto measured the length of a stick's shadow from sunrise to sunset during the day. What did he notice from his observations
statuscvo [17]

Answer: C. Shadow length decreased from sunrise to noon.

Explanation: Think about how the sun is positioned in the sky. If it was noon, the sun is above the stick which means little to no shadow at all. If the sun was rising, its hitting one side of the stick, making the shadow longer.

3 0
2 years ago
There is an algal bloom in a bay in a populated area. As the leading marine biologist in the area, what is the most important th
k0ka [10]

Answer:

evacuate all wildlife from the bay

Explanation:

Algal bloom is a term used to describe the excessive growth of algae species in a water body. This excessive growth or proliferation is as a result of the exposure to nutrient in form of pollutants, a process called Eutrophication.

However, the presence of an algal bloom indicates the pollution of that water body, which will result in the degradation of the pollutants by bacteria. As bacteria acts on the pollutants in the water body, they excessively use the dissolved oxygen of the water body, hence, drastically reducing the oxygen levels of the water. This possess a great threat to aerobic wildlife in the water, which could die as a result of suffocation or anorexia.

Hence, the most important thing to do in a case of noticing an algal bloom in a bay is to evacuate all wildlife from the bay in order to prevent mass death.

4 0
2 years ago
The broadest way to classify the nervous system is to differentiate between the ______ nervous systems.
ankoles [38]

Answer:

Central and Peripheral

Explanation:

The nervous system is divided into two parts: the central nervous system and the peripheral nervous system. The central nervous system includes the brain and spinal cord.

On the other hand the peripheral nervous system includes all of the nerves that branch out from the brain and spinal cord and extend to other parts of the body including muscles and organs. Each part of the system plays a vital role in how information is communicated throughout the body.

The below diagram provides a schematic view of the role of each sub-division  of the Nervous System.

4 0
2 years ago
At this time in the earth's history, scientists and others are very concerned about climate change. What is the best explanation
torisob [31]

Answer:

Rise of population and over-consumption resources are key factors of  climate change.

Explanation:

  • The fact that climate change is real and is happening at a very fast rate. The impacts of which can be seen in terms of the increase in sea levels.  
  • The rise in global average mean temperatures, an increase in the melting of Greenland and Antarctic glaciers. The exposure of barren land beneath the antarctic continent.
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8 0
2 years ago
For each food listed below choose whether it has it all single carbon to carbon bonds or at least one double carbon to carbon bo
RSB [31]

Answer:

                                                                                                                              Peanut butter            

All single carbon-to-carbon bonds

                                                                                                                    Sunflower oil  

At least one double carbon-to-carbon bond

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All single carbon-to-carbon bonds

Explanation: I did it on Edge 2020 and it was correct.

8 0
2 years ago
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