Answer:
Attraction: It includes all those factors which attract a tourist. ... Accessibility: It is how to access or reach to that place of attraction. Ways to reach. Accomodation: Place to stay or accomodate while travelling for rest or overnight stays.
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.
Mermaids don’t exist.... they are just irish folk tale :|
Answer:
Explanation:
If I had to choose I would live in a large planned city. Each day would be similar, and I would not have to worry about things that could happen. In a planned community, everything is perfectly designed, so everything runs smoothly. This would be perfect for me since I like order. In an unplanned city things won't always go smoothly, and things can get messed. Up or ruined. I prefer to stay on the safe side and live in a perfect planned-out city.
Answer:
b. flat rotation curves in spiral galaxies
Explanation:
Dark matter accounts for majority of the matter in the universe (about 85%). It is considered to be composed of subatomic particles which are yet to be discovered. Dark matter cannot be observed because it does not emit light that can be detected. Only its gravitational effect is visible.
Astronomers when calculated the mass of the visible matter and tried to account for the observed speed of stars in the galaxy, there was a mismatch. To understand what caused this mismatch, astronomers gave name to the invisible matter as the Dark Matter.
The expected velocity of stars should decrease away from the near the center of the galaxy but a constant velocity of stars was observed that is a relatively flat rotation curve was obtained.
Thus, flat rotation curves in spiral galaxies in an evidence of Dark Matter.
