1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Serhud [2]
3 years ago
11

Scientists have created trains that use magnets to make the trains float above the tracks as they travel. the trains float becau

se
a. the track is waxed
b. the like poles repel
c. the train has a low density
d. a chemical change occurs
Biology
1 answer:
Basile [38]3 years ago
8 0
The answer is B. the like poles on the magnets repel.

hope this helps (;
You might be interested in
Which process will decrease the level of C02 in the atmosphere
mezya [45]

Answer:

Carbon capture and storage

Explanation:

6 0
3 years ago
Why do most leaves tend to appear green if they reflect green light?
Alex73 [517]
Because our eyes see what's reflected not absorbed. Leaves contain chlorophyll which contains a pigment of green that absorbs red and blue wavelengths, while reflecting green.
4 0
3 years ago
Read 2 more answers
What is the name for runaway plant growth because of excess nitrogen
shusha [124]

The correct answer is Eutrophication.

When a body of water become enriched with nutrients and minerals and induces growth of algae and plants is referred to as eutrophication.

The process of eutrophication can result to water body depletion.

When there is increase in nutrient levels there is increase in phytoplankton in the water body.

Discharge of nitrates which contain sewage, fertilizer, and detergents in aquatic system may induce the eutrophication.

6 0
4 years ago
Read 2 more answers
5. The Skinner box allows experimenters to test animals without having to "re-load" the experiment, allowing the trainer to rein
Alekssandra [29.7K]

Answer:

  • The Skinner box allows experimenters to test animals without having to "re-load" the experiment, allowing the trainer to reinforce the animal with <u>operant conditioning</u> trials.

Explanation:

  • There are a number of behavior and actions shown by a particular specie when they are placed or position inside a given environment for the Skinner box it involve a animal which was constantly attempting to get its hands on the given bait.And that is why the following actions were termed as the operant conditioning.
7 0
4 years ago
Describe the unique intercellular connections between muscle cell
Leni [432]

Answer:

hi sisters how are you.??

6 0
3 years ago
Read 2 more answers
Other questions:
  • Which of these is is the greatest density silver copper aluminium or gold
    8·1 answer
  • Water "beads up" on synthetic fabric such as polyester but binds to cotton. what is the most likely explanation for this?'
    15·1 answer
  • How should molecular clocks be used if not all mutations occur at the same rate?
    13·1 answer
  • How are 96% human dna found in gorilla dna?
    12·1 answer
  • Which of these statements is correct about the role of the atmosphere in the two examples of Earth system interactions?
    13·1 answer
  • Invasive species are one of the major threats to blodiversity. These species multiply quickly and compete with native species fo
    6·1 answer
  • The specialization of the pharyngeal jaws of cichlids for different diets represents a trade-off in function because ___________
    5·1 answer
  • What would cause a person’s eye color to change from blue to green while that person was a child?
    14·1 answer
  • HELP!
    12·2 answers
  • Energy flow in an ecosystem is best represented by _______.
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!