Answer:
Vatican City (I know it has city in the name lol)
Explanation
Trust me on this one though haha
The land mass is technically a country because of the Lateran treaty of 1929, which made Vatican city an independent state under the Holy See.
Answer:
It would<u> reduce the dependence on traditional ways of living.</u>
Explanation:
- Living in a place were water and space are heated directly by sunlight or sun influence would be quiet interesting and challenging as the sun is the nearest star to planet earth and this star will continue to grow in size, and also the resources on surface of earth are finite and thus any overuse of these resources can lead to their depletion.
- Use of this solar light or heat is essential as its an inexhaustible resource that can be stored at specific temperatures and used in terms of lightning, billing waters from heat generated by sun photovoltaic cells.
- The same energy that is needed r warm the surface of the earth falling on rooftops of the house can recharge the energy bill of the entire country for which sun harvesting has to be implemented.
- Like solar terracing and many farmers and people have done gardening on their roofs and many innovative techniques are being developed for a sustainable future.
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.
? Looks like u answered ur self .-.
