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
Sonbull [250]
3 years ago
9

Write how you would explain what a plate tectonic is to a 1st grader, will choose brainly

Geography
1 answer:
alexdok [17]3 years ago
5 0

Answer:

The plates have moved across Earth’s surface for hundreds of millions of years. As the plates move, the continents on them move, too. This movement is called continental drift.

Scientists think that it takes about 500 million years for all the continents to join together into one big continent—or supercontinent—and then break apart again. A number of supercontinents have formed and broken apart on Earth over time. The most recent supercontinent, called Pangea (or Pangaea), had formed by about 270 million years ago. Pangea lay across a plate boundary. Slowly, Pangea broke apart at this boundary. Rising magma filled in the space, which eventually became the floor of the Atlantic Ocean.

One piece of Pangea included parts of what are now North America, Europe, and Asia. This piece, called Laurasia, drifted north. The other piece of Pangea included parts of what are now Antarctica, Africa, South America, and Australia. This part, called Gondwanaland, drifted south. Eventually Laurasia and Gondwanaland broke apart, too. The continents then slowly moved to the places they are now.

The continents continue to move today. Scientists believe that in about 250 million years they will join together again.

Explanation:

You might be interested in
Economic consequences of removing dams
g100num [7]
The U.S. has more than 87,000 dams greater than six feet high (and two million overall). While many dams continue to provide benefits such as flood control, irrigation, and water supply, for other dams the cost of maintenance or the negative effects on communities, fish, and tribes justifies their removal.
Dam owners and regulators decide whether to remove a dam by weighing many factors including: the cost of removal and the ability to replace any lost power generation against avoided long-term maintenance; safety concerns; benefits to endangered fish populations; increased recreational and commercial fishing; and restoration of cultural values of nearby tribes.
By 2020, roughly 70% of dams will be more than 50 years old, inviting us to reconsider the value to the public of long-term investments in this infrastructure.
6 0
3 years ago
A researcher is studying a particular population. She notices that the carrying capacity for this species in this ecosystem has
Anna11 [10]

<u>ANSWER:</u>

The resources available for the population have decreased would have caused the change.

<u>EXPLANATION:</u>

  • The carrying capacity of a population is the maximum size of population that a species can sustain in the environment using the available factors.
  • When the carrying capacity of a population decreases, it means that the resources for the species are not available in enough quantity to allow the population to sustain and thrive.
  • Insufficient food, space, light and water are major causes for a decrease in the "carrying capacity" of a population.
7 0
3 years ago
What is the difference between an ecoregion and a region?
Keith_Richards [23]
The difference is:

1. An ecoregion is an area that is known for its environmental conditions, landscapes, and soil

2. A region is an area that is part of a country or some parts of the world
8 0
3 years ago
Mass wasting, a process that often occurs between weathering and erosion, involves ________.
Pachacha [2.7K]
The transport of material due to gravity.
7 0
2 years ago
Read 2 more answers
The Danube River is navigable and thus connects many of the countries of the European continent
Ganezh [65]
I think you wanted to know whether the statement in question is true or false. Based on this assumption, i am answering the question. It is a true fact that the Danube River is navigable and thus connects many of the countries of the European continent. I hope that the answer has come to your help.
3 0
4 years ago
Other questions:
  • 31. A meteorologist studies ___________. A. the universe B. plants C. the climate D. meteorites
    13·1 answer
  • The United Nations was heavily criticized during the 1994 Rwandan genocide because it __________.
    13·2 answers
  • The subregion of the United states most aided by the deveolpment of irigation and air conditioning was?
    5·1 answer
  • Ano ang kaugnayan ng klima sa mga likas na yaman<br>Na matatagpuan sa pilipinas​
    13·1 answer
  • Napoleon's power grew in Europe through a series of alliances and treaties, though he did not take over Great Britain.
    9·1 answer
  • What are reclaimed islands?
    8·1 answer
  • Which of the following can cause global warming?
    14·1 answer
  • What is the elevation at the peak of sugar Loaf mountain <br><br><br> Help meee
    12·1 answer
  • 1. Define the term 'escarpment'.
    13·1 answer
  • Select the correct answers.
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!