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The Great Green Wall is taking root in Africa's Sahel region, at the southern edge of the Sahara desert. The Great Green Wall is a symbol of hope in the face of one of the biggest challenges of our time - desertification. This game changing African-led initiative aims to restore Africa's degraded landscapes and transform millions of lives in one of the world's poorest regions, the Sahel.
Primary succession occurs on land where no previous growth has taken place and there is no substrate/soil. Secondary succession occurs on land where there has been previous growth, the soil and seed bank makes up the substrate.
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I majored in Biology
They are in algebraic I think
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Explanation:
Natural product should be encouraged against chemicals this include vinegar, citric acid from citrus fruits and bicarbonate of soda.
The use of right lightbulbs helps conserve energy at home.
A recycle bin makes the environment more confortable as it helps recyle some waste product such as paper, bottles, jar .
Schools should use fluids, non toxic chemicals that are environmental friendly for cleaning in the school
The use of plastic should be reduced in lunchroom to make the environment condusive and less of plastic waste
The schools should plant trees in the environment to encourage fresh air ansd allow for carbon fixation.
QRS complex refers to the combination of the Q, R, and S waves, and indicates ventricular depolarization and contraction (ventricular systole).
Ventricular rate can be calculated by determining the time interval between QRS complexes. The duration of the QRS complex is normally 0.06 to 0.10 seconds. This relatively short duration indicates that ventricular depolarization normally occurs very rapidly.
P QRS and T waves in electrocardiogram signifies the P wave in an ECG complex indicates atrial depolarization. The QRS is responsible for ventricular depolarization and the T wave is ventricular repolarization.
To learn more about ventricular depolarization , here
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You would have to have unlimited resources and no predators.
