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
sdas [7]
3 years ago
7

URGENT!!!!!!!!!!!!Which are examples of convection currents? Check all that apply.

Biology
2 answers:
Aloiza [94]3 years ago
8 0
I believe a pot of water that is being heated by a electric burner. This is because the warmer water moves to the top and the cooler water moves down to the bottom of the pot. This causes a circular motion. The next example of convection heat is a hot air ballon rising and falling in the atmosphere. A radiator is also because the hot air is drawn out the top and the cooler air is drawn to the bottom.
Scilla [17]3 years ago
5 0

Explanation:

Convection is defined as  a process in which upon heating a fluid (liquid or gas) there occurs rising of hot (less dense) dense molecules and sinking of cold (more dense) molecules.

For example, when rice in a pot of water are moving then it means the convection current arises in water when radiator that emits warm air and draws in cool.

As a result, rice that has absorbed heat become light in weight and hence they will rise and cold (more dense) rise that have not absorbed heat yet will sink at the bottom.

Similarly, when a hot air balloon is rising and falling in the atmosphere then hot (less dense) gas molecules causes them to rise in the air whereas cold molecules (more dense) will cause it to fall in the atmosphere.

Therefore, we can conclude that out of the given options examples of convection currents are as follows.

  • rice moving in a pot of water that is being heated a radiator that emits warm air and draws in cool.
  • air a hot air balloon rising and falling in the atmosphere.
You might be interested in
Give a basic definition of evolution as taught in this unit 2 Lesson 2.16. In 10th grade. Please write in your own words. Will M
oksian1 [2.3K]

Answer:

In biology, evolution is the change in the characteristics of a species over several generations and relies on the process of natural selection. The theory of evolution is based on the idea that all species? are related and gradually change over time.

6 0
2 years ago
When new bare land has been created or the ecosystem has been severely damaged by a fire, what is likely to occur?
Angelina_Jolie [31]

Answer:

C. pioneer species begin the process of succession

Explanation:

3 0
3 years ago
Why did dna technology lead to more use of cladistics?a. it showed that the linnaean system was the most accurate.b. it changed
Alexandra [31]
The correct option from given options is "b", that is <span> it changed ideas about which animals were closely related.
</span>Cladistics<span> was </span>invented for the purpose of improving on taxonomy and it is a way to deal with biological classification. DNA technology lead to more use of cladistics because it changed ideas about which animals were closely related and also it showed new evolutionary relationships between animals.
8 0
3 years ago
Read 2 more answers
What information did gregor mendel know before he started his experiments?
mario62 [17]

Answer:

Mendel was a mathematician and a physicist. He was tutored by Christian Doppler known for his work "Doppler effect of wave frequency".

Mendel learned botany under Franz Unger.

Both knowledge of science and math helped him notice some patterns, traits and qualities in the gardens he had.

With that idea, he was able to see the chances or portability of developing such traits and how to prove it.

7 0
3 years ago
Tamara’s muscle weakness and fatigue becomes progressively worse over the course of the day. This is a hallmark sign of myasthen
vekshin1

Answer: Acetylcholine is released from the axon terminal and diffuses across the synapse to link to a receptor in the surface of the motor end plate.

Explanation:

Sinapsis in biology is a structure in which a neuron cell communicates with another using an electric or chemical sign.

6 0
3 years ago
Other questions:
  • Which layer best represents the mantle?<br>A. 1<br><br>B. 2<br><br>C.3<br><br>D.4
    5·1 answer
  • What two events take place during human sexual reproduction
    11·2 answers
  • The climate of a region can be influenced by many things, such as the altitude and latitude of a region or the presence of a nea
    5·1 answer
  • In John Watson's Little Albert experiment, the white rat was the ________ and the loud noise was the ________.
    11·1 answer
  • Which of these make up the vascular tissue
    5·2 answers
  • The formation of ova, or female reproductive cells, occurs when diploid germ cells undergo meiosis. In female swamp wallabies (W
    6·1 answer
  • In some cases of head injuries, the cerebrum may be affected. This type of injury could cause a loss of and impaired
    11·2 answers
  • The geological time scale represents the history of what?
    12·1 answer
  • Describe the path of a nitrogen atom through four parts of the nitrogen cycle. Be sure to explain the processes involved in the
    13·1 answer
  • Can someone help me please
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!