Answer:
Southern Africa
Explanation:
East and Southern Africa is the region most affected by HIV in the world and is home to the largest number of people living with HIV.
I'd say the answer is D. Hope this helps :)
When the moon is in the middle of earth and the sun.
Answer:

Explanation:
Given
Parallel to: 
Passes through (-9,-4)
Required
Determine the line equation
First, we calculate the slope (m) of the said line

Make y the subject

Divide through by 3

An equation has the general form:

Where

So:

Because the required line is parallel to
, then they have the same slope of 
Next, is to calculate the line equation using:

Where


This gives:


Open bracket


Answer:
The active volcanoes are gradually moving away from the oceanic ridge.
Explanation:
- Many oceanic volcanoes occur as long lines of the active end of volcanoes as here in the mid-oceanic ridges the plate is pushed far away from the ridge surface of the earth as these tend to move out in the direction of the movement of the plates.
- Thus the volcanoes are generally found near the active zones or regions of the tectonic plate and associated with the earthquakes occurring on the fault line or shear lines of the plates.
- Spreading of the ridges as a result of the seafloor spreading takes place and the mantel and plates from below are the driving forces that make the volcanoes and convection current that rises through the mantle pushes or spread the volcanoes to the sides like seen in the ring of fire.