Hawaii has volcanoes due to its unique geological setting and the process of plate tectonics. The Hawaiian Islands are part of a volcanic island chain located in the middle of the Pacific Ocean. The primary cause of the volcanoes is the movement of tectonic plates beneath the Earth's surface.
1. Hotspot Theory: The Hawaiian Islands are formed by a hotspot, which is an area of intense heat beneath the Earth's crust. The hotspot remains stationary while the tectonic plates move over it. As a plate moves over the hotspot, the intense heat causes melting of the mantle, creating magma chambers.
2. Formation of a Volcanic Island Chain: As the magma rises through the crust, it eventually reaches the surface through vents and fissures, leading to volcanic eruptions. Over millions of years, as the Pacific Plate moves over the hotspot, a chain of volcanic islands is formed. The oldest islands are located to the northwest, while the youngest islands are to the southeast.
3. Shield Volcanoes: The volcanoes in Hawaii are primarily shield volcanoes, which have a broad, shield-like shape. These volcanoes form from low-viscosity lava (mainly basalt) that flows easily and covers large areas, creating a gradual slope. As the lava cools and solidifies, it builds up the volcano's height and width.
4. Erosion and Subsidence: As new volcanoes are formed, erosion and subsidence processes occur. Erosion from wind, water, and waves wears down the volcanoes, while subsidence causes the older islands to gradually sink back into the ocean. This is why the oldest islands in the Hawaiian chain are smaller and lower in elevation compared to the younger, larger islands.
Overall, the ongoing movement of tectonic plates and the presence of the hotspot beneath the Pacific Plate are the main reasons for Hawaii's volcanic activity and the formation of its iconic volcanic islands.
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B. new matter is constantly being created.
C. the universe will continue expanding forever.
D. we may be able to travel into another universe.
b.-prime meridian
c.-South America
d.-North America
Answer:
Option (b) is the correct answer of this question.
Explanation:
Prime Meridian is located at 0° longitude.A prime meridian is the meridian (a longitude line) in a system of geographic coordinates in which longitude is defined as 0 ° is known as prime meridian.
Unlike an equator defined by the rotation axis, the primary meridian is arbitrary.Various definitions for the Earth's prime meridian have been used or encouraged in different regions throughout history.
prime meridian is located at 0° longitude. The correct option is b.
The prime meridian runs from the North Pole to the South Pole passing through Greenwich, England and is marked at 0° longitude. It divides the world into the Eastern and Western Hemispheres and serves as the standard for measuring east-west distances on the Earth's surface.
The equator, which divides the Earth into the Northern and Southern Hemispheres and is situated at 0° latitude is a circle that is equidistant from the North and South Poles. The Western Hemisphere is home to the continents of South and North America. The prime meridian is an important geographic and navigational landmark that promotes global cooperation and timekeeping.
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Answer:
NIIIIIIIIGGGGG it is c
Explanation:
Answer and Explanations:
The reason is because native pollinators e.g native bees are messier than honey bees and often don’t have tidy pollen pouches on their legs and this makes them better at spreading pollen around thereby increasing the quantity and quality of crops of native plants.
Also, native bees tend to shake more loose. As a matter of fact, tomato farmers could see 50% more tomatoes that are twice as big if they get regular native bee visits like bumble bees.