Answer:
1. Atlas:collection of maps
2. Gis: best tool to plan huricane evacuation plans
3:Globe: best tool to compare the size of the continents
4. Gps: best tool to pinpoint your exact location
5. Mercater Projection: areas near the poles appear larger then they are
6.Political map: best tool to locate the boundaries between countries.
7. RADAR: best tool to use when visibility is reduced
8. Relief map: colors show the Earth's features
9.Topographical maps: Elevation is indicated by the distance between lines
10: Winkel Tripel projection: reduces distortion of distance, direction, and area
Explanation:
Answer:
C) X=100%; Y=0%
B) X=50%; Y=50%
Explanation:
The oldest rocks on Earth are about four billion years old. When a rock forms, it contains unstable isotope and no daughter isotopes, so every rock will contain 100% parent isotope and 0% daughter isotope.
The half-life of the radioactive isotope Of this particular rock is 5730 years. The half-life is an amount of time needed for half of the parent isotope (50%) to become a daughter isotope. In this case, after 5730 years, half of the initial parent isotope will transform to daughter isotope, which means that after 5730 years, there will be 50-50 of the parent and daughter istotopes presented in the rock. After two half-lives, there will be only 25% of the parent isotope remaining (that’s half of the previous 50% which remained after first half-life), and after three half-lives, there will be only 12,5% of the parent isotope remaining and so on.
Answer is Retrograde motion
Most of the time planet moves in expected path near the ecliptic which is east to west. Some times each planet turns around and moves to the east for a period of time, then it turns around to head in west direction again making a loop or zig-zag against the star background. This is called retrograde motion. Thus retrograde motion is the change of direction of the planets in loop.
If the tectonic plates had higher rates of movement than what they currently do, then the surface of Earth would have been much different. The first noticeable difference would have that the average elevation would be higher than it is now. The reason for that will be that the erosion rates will remain as they are, while the orogenic processes will speed up, so there will be much faster formation of hills and mountains.
The climate would vary much faster on global level, as faster movement of the continents will contribute to fast changes in the ocean currents, and the global wind patterns, all that can have been impact on the relief.
Another thing would be the merging and breaking up of the continental masses, so a formation of a super-continent will occur, and with it lot of new land forms around the areas that are boundaries of the plates, but also that super-continent will break up quicker, so new continental masses will form quickly as well.
With the directions of movement of the tectonic plates as they are, if the rates of movement speed up, Australia will very soon merge with the southern islands of Southeast Asia, Africa (Nubian plate), North America, and Eurasia will merge, while the Somali plate of Africa will move into the Indian Ocean and close it up. South America will isolate itself from North America and move deeper into what is now the Pacific, while Antarctica will move gradually toward the Equator, all of which will make the world look much different, and with constant rise of new land forms and changes of the surface of out planet.
One of the main issues that involve our environment is global warming, which lead to the climate change hence causing many problems:
Ice cap melting- As the atmosphere become thicker given the increasing emission of carbon dioxide from manufactories,heat is trapped within the Earth’s surface. This has caused the ice cap in the North pole and South pole to melt. The reduce of ice cap is an affect of global warming on the environment, and it also cause the sea level to rise, increasing the chance of flooding.
Tropical cyclone- Tropical cyclones are more likely to be formed as the temperature rise. They greatly affect the coastal countries/cities and damage the environment with extremely strong wind. For example, many infrastructure like houses and cable has been damaged as typhoon mangkhut swept through Japan.
Hope it helps!
