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
Anuta_ua [19.1K]
3 years ago
14

How does the prevalence of the HIV virus in South Africa in 1990 compare to the prevalence in 2015? What does this suggest about

South Africa’s AIDS prevention measures over that time span?
Geography
1 answer:
Elodia [21]3 years ago
7 0

Answer: in 2015, South Africa’s HIV prevalence percentage was 19.2% and in 1990 it was only 1.0%, This change suggests that aids prevention and education programs in South Africa were scarce.

Explanation: hope this answers your question. Have a good day

You might be interested in
In Australia how many people live in every square kilometer​
patriot [66]

Answer: about 3.1 people per square kilometer, but varies with different locations. For example, the Australian Capital Territoy has the largest density of 171 people per sq km, followed bby Victoria (27), New South Wales (9.7), and Tasmania (7.6). Hope this helps :)

4 0
3 years ago
Read 2 more answers
What is the force that drives the Wisconsin river?
grandymaker [24]
The Wisconsin River originates in the forests of the North Woods Lake District of northern Wisconsin, in Lac Vieux Desert near the border of the Upper Peninsula of Michigan. It flows south across the glacial plain of central Wisconsin, passing through Wausau, Stevens Point, and Wisconsin Rapids. In southern Wisconsin it encounters the terminal moraine formed during the last ice age, where it forms the Dells of the Wisconsin River. North of Madison at Portage, the river turns to the west, flowing through Wisconsin's hilly Western Upland and joining the Mississippi approximately 3 miles (4.8 km) south of Prairie du Chien.
8 0
3 years ago
1) of the 4 ways to transfer heat, conduction, radiation, convection and advection, which two are the primary forms of heat tran
padilas [110]

Answer:

Radiation and advection

Explanation:

  • Conduction: It happens when particles of matter are in direct contact, the adjacent atoms of higher energy vibrate against each other transferring energy from high to low temperature. Fluids and gases are less conductive than solids because their atoms have a greater distance. An example is the heat transferred between the electric burner of a stove and the bottom of a pan.
  • Convection: Is a heat transference between a surface and a liquid or gas in motion, as the fluid/gas travels faster the transferred heat increases. An example of this transfer takes place in a forced-air furnace and weather systems.
  • Advection: is similar to convection but the transfer of heat is lateral or horizontal. In the atmosphere this kind of transfer is common.
  • Radiation: is the transfer through empty space, it occurs without an intervening medium when microwaves, infrared radiation, visible light or another electromagnetic radiation is emitted or absorbed. An example is the sun warming the Earth.

Advection and radiation are the primary forms of heat transfer. Convection only happens in the troposphere because horizontal heat transfer (advection) is significantly bigger. The same happens with conduction that only transfers heat in the lower layers of the atmosphere, Sun's radiation, on the other hand, gets absorbed in all the atmosphere.

I hope you find this information useful and interesting! Good luck!

4 0
3 years ago
Dark areas can form in the photosphere of the sun. these areas are cooler than surrounding areas. they also have a strong magnet
algol [13]
The answer is - Sunspots.

Sunspots are dark in appearance, but only on a visible light, and this is due to the fact that they are much cooler than the surrounding areas, but that doesn't mean by any means that the sunspots are cool, on contrary, they are very hot too. Sunspots actually are storms that appear in the lower atmosphere of the sun.
3 0
3 years ago
UncuuuuTube
likoan [24]

Answer:

Any circle drawn around the Earth divides it into two equal halves called hemispheres. There are generally considered to be four hemispheres: Northern, Southern, Eastern, and Western. The Equator, or line of 0 degrees latitude, divides the Earth into the Northern and Southern hemispheres.

Explanation:

7 0
3 years ago
Other questions:
  • How do the noth atlantic drift and the prevailing westerlies affect europe climate?
    5·1 answer
  • Many popular beverages are sold in two-kilos? true or false?
    11·1 answer
  • The slow drifting of sections of the earth's crust, sometimes separating, other times colliding, is known as ________.a. plate t
    10·1 answer
  • Which characteristic distinguishes Earth from the other terrestrial planets
    14·1 answer
  • What is the fracturing of rock along curved lines that results when pressure is removed from bedrock?
    5·1 answer
  • List and describe 3 landforms that can form terranes.
    9·2 answers
  • If you travel up the Sierra Nevada outside Fresno until you reach the crest of the mountain range, you will be above the treelin
    11·1 answer
  • Why do meteorologist use symbols and maps to analyze the weather​
    12·1 answer
  • How does Canada’s population distribution show that climate and resources affect where people live?
    11·1 answer
  • -Answer quick!-
    14·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!