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
Elan Coil [88]
3 years ago
8

Where do streams and rivers get their start?

Biology
1 answer:
Sloan [31]3 years ago
4 0
Some rivers begin in mountains or hills, where rain water or snowmelt collects and forms small channels, . At first, the channels are small and are called rills. As more water enters the channels they grow forming gullies (larger channels). The streams in the gullies eventually become big enough to form a river
You might be interested in
Some people see wind energy as a clean alternative to fossil fuels. Others believe that utilizing this renewable energy resource
Y_Kistochka [10]

Answer:

Renewable energy resource as an obstacles for the growth of migratory salmon populations: It is now believed that the reduce access to spawning grounds and nursery areas, leading to a decrease in migratory fish populations is due to the dam structures of large storage-type schemes, which can create great obstacles for the movement of migratory fish species.

Explanation:

  • Storage-type schemes ( big dams) can significantly change the downstream flow regime,and may also alter water temperature and quality, and even make it inhabitable for fish to live.
  • As the storage of water can be linked with high evaporative losses, which in turn results in high life cycle water footprints compared to other sources of electricity.

<u>Run-of-river (ROR) schemes are HEP schemes: </u>

They operate without water storage, using the flow within a river channel.They are ecologically friendly and do not disturb the natural mechanism for the migrating salmons.

Working Principle:

They are normally used to regulate water levels, which allows a proportion or part of flow to be diverted down a secondary channel to a turbine before it is returned to the main channel further downstream.

There are some modern turbine types used in ROR HEP(hydroelectric power) schemes, which are also designed to allow fish to pass through the system unharmed if the fish do pass through the intake screens.

8 0
3 years ago
Name a difference between a vein and artery
Yuki888 [10]
Arteries like veins, are tube-shaped vessels that carry blood in the body. 
But the difference is that the artery carries oxygenated blood away from the heart to the body. But the veins carry poor-oxygen blood back from the body to the heart! 
I hope this helps! :)
5 0
3 years ago
Read 2 more answers
Mendel used
padilas [110]
Experiments in general are more reliable when a greater sample size is used. When using a small sample size, a mistake or fluke can greatly effect the outcome of the experiment. With a large sample size, there is more data to understand averages and deviations to the average data. The average will likely be more accurate with more data, which would make his sample size more reliable.
3 0
3 years ago
Read 2 more answers
How does carbon dioxide affect the ecosystem
FrozenT [24]

As a greenhouse gas that absorbs heat, CO2 raises the temperature of the atmosphere. We refer to this as global warming. The glaciers will melt more quickly as the world's temperature rises, raising sea levels and bringing on disaster. More power is consumed for air conditioning as the temperature rises, which further raises the air's CO2 level.

Since coal is the primary fuel utilized in the creation of power. This creates a vicious cycle.

3 0
2 years ago
Can anyone please answer this ?
iris [78.8K]

Answer:

It should be B.

Explanation:

7 0
3 years ago
Read 2 more answers
Other questions:
  • The last "hot house" or period of increased temperature occurred _____. during a.the time of the dinosaurs
    10·2 answers
  • Explain scientifically whether humans and humpback whales share a close evolutionary relationship.
    15·1 answer
  • Most animals exhibit bilateral symmetry. what type of symmetry is exhibited by things like starfish?
    15·1 answer
  • What must happen to pyruvate before it can enter the kreb’s cycle? explain.
    8·2 answers
  • Organisms with the ability to produce many offspring in a short period of time are considered ____.
    10·1 answer
  • Process of Sexual Reproduction for honey bees
    6·1 answer
  • Movements of the air that occur in short distance caused by local land features, such as mountains or large bodies of water
    13·1 answer
  • What are some similarities between a sea slug and a spotted salamander
    15·1 answer
  • Based on the spectrums in the figure, rank the four galaxies in order of the speed with which they are moving away from Earth, f
    9·1 answer
  • What causes hyponatremia?
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!