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Dahasolnce [82]
2 years ago
13

What is believed to have caused people to first move out of Africa? Where did they go?

Biology
1 answer:
Free_Kalibri [48]2 years ago
3 0
Biological or genetic changes caused migration

They went to Eurasian landscapes
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BRAINLIEST!!!!
GaryK [48]

Answer: Water Quality.

Explanation:

The figure of the unhealthy ecosystem shows the industrial runoff into the water. This run off contains nitrogen and phosphorous in excess amount.

This excess nutrients leads to the growth of the algal bloom in water which in turn reduces the amount of oxygen which is easily seen in the the water.

This growth is caused due to poor water quality, and if the industrial run off will be reduced the quality of water will improve.

6 0
3 years ago
Read 2 more answers
Metano (CH4) puede regresar a la atmosfera como dioxido de carbono a traves del proceso de? Porfa ayuden es un examen >.
mel-nik [20]

Answer:

Combustión

Explanation:

La combustión es el proceso mediante el cual la materia reacciona con el oxígeno y se convierte en dióxido de carbono y agua.

Otro nombre para la combustión es quema. Cuando el metano se quema en el aire, se convierte en dióxido de carbono y se devuelve a la atmósfera según la reacción;

CH4 (g) + 2O2 (g) -----> CO2 (g) + 2H2O (g)

8 0
3 years ago
Why the tropical forest has a more lush plant life than the tundra in regards to how fast things decompose.
ahrayia [7]

Answer:

Because of Nitrogen

Explanation:

  • Nitrogen seems to be much difficult for plants to acquire because they can only consume nitrogen when it is combined with oxygen or hydrogen, which is why tropical forests have a lusher plant growth than tundra.
  • The decomposition process is the secret to maintaining the nitrogen cycle going since the bulk of fixed nitrogen arrives from decaying organisms and faces being broken down by bacteria.
7 0
2 years ago
A (____) is a statement saying that what is presented is true.
ruslelena [56]

Answer:

A ‘receipt’ is a statement saying that what is presented is true

Explanation:

Hope this helps!(づ ̄3 ̄)づ╭❤~

3 0
2 years ago
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Who developed the principle of Biological Succession?
Whitepunk [10]
Charles Darwin James
4 0
3 years ago
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