GEOGRAPHY MIDDLE SCHOOL

List three examples of direct evidence of evolution.

Answers

Answer 1
Answer: I can list one: Lucy, the monkey human found in a cave.

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What is the practice of leaving the stocks of crops in the ground to anchor topsoil

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The practice of leaving old stalks in the ground to provide cover from the rain. The cover reduces water runoff and slows soil erosion

What is the climate of Peru's coastal region?
tropical
desert
cool
temperate

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Well. Peru is quite close to the equator and is known to be warm but not dry like the desert. I'd go with tropical. 

Answer:

peru is desert

Explanation:

hope it helped :)

Explain how the theories of continental drift and sea floor spreading support the theory of plate tectonics.

Answers

The Continental Drift Theory is a portion of the Plate Tectonics Theory, which explains how new seafloor is generated when the Tectonics Drift, or move over the magma, and how the planet is made up of huge chunks of land in different parts that occasionally shift about and move.

What is the theory of plate tectonics?

The theory of plate tectonics contends that the lithosphere, the planet's outer shell, is divided into a number of plates that move across the rocky interior of the planet and on top of its soft core.

Compared to the Earth's mantle, the plates behave like a solid, rigid shell. The Plate Tectonics Theory, which includes the Continental Drift Theory, describes how fresh seafloor is created as subduction zones drift over volcanoes and how the earth is dreamed up of enormous pieces of land that periodically migrate and change.

Therefore, the Plate tectonics is supported by the hypotheses of continental drift and sea floor spreading.

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The Plate Tectonics Theory describes that earth is made up of large chunks of land in separate pieces that sometimes shift around and move, thus stating that Continental Drift Theory is part of Plate Tectonics Theory, and how more seafloor is created when the Tectonics Drift, or move over the magma.

(1) Why are weathering and erosion considered destructive forces?(2) What are sediments?Give and example of sediments and how they form.

(3) Describe the sequence of events information of a cave.

(4) How Could you tell if a glacier had once moved across a region?

(5) would the features of a marble statue last longer in a dry desert region or in warm, moist region that has heavy industry?exlain

Answers

1. Weathering and erosion are destructive forces because they break down objects 2.Fossils are sedimentary and it is formed when rocks or soil accumulate.
3-
Best Answer: Solutional caves are the most frequently occurring caves and such caves form in rock that is soluble, such as limestone, but can also form in other rocks, including chalk, dolomite, marble, salt, and gypsum. Rock is dissolved by natural acid in groundwater that seeps through bedding-planes, faults, joints and so on. Over geological epochs cracks expand to become caves or cave systems.

The largest and most abundant solutional caves are located in limestone. Limestone dissolves under the action of rainwater and groundwater charged with H2CO3 (carbonic acid) and naturally occurring organic acids. The dissolution process produces a distinctive landform known as karst, characterized by sinkholes, and underground drainage. Limestone caves are often adorned with calcium carbonate formations produced through slow precipitation. These include flowstones, stalactites, stalagmites, helictites, soda straws and columns. These secondary mineral deposits in caves are called speleothems.

The portions of a solutional cave that are below the water table or the local level of the groundwater will be flooded.

The world's most spectacularly decorated cave is generally regarded to be Lechuguilla Cave in New Mexico. Lechuguilla and nearby Carlsbad Cavern are now believed to be examples of another type of solutional cave. They were formed by H2S (hydrogen sulfide) gas rising from below, where reservoirs of oil give off sulfurous fumes. This gas mixes with ground water and forms H2SO4 (sulfuric acid). The acid then dissolves the limestone from below, rather than from above, by acidic water percolating from the surface.

What is the capital of the island nation off the coast of East Asia through which the Tropic of Cancer passes?

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Taipei (Taiwan) in China is the capital of the island nation off the coast of East Asia through which the Tropic of Cancer passes.

Did Taiwan ever belong to China?

The Qing Empire designates Taiwan as one of its provinces. The Qing government signs the Treaty of Shimonoseki, ceding sovereignty over Taiwan to Japan after losing the First Sino-Japanese War (1894–1895). Japan governs the island until 1945. The Kuomintang and the Republic of China Armed Forces were defeated in the Chinese Civil War in December 1949, forcing the Republic of China government to flee to Taiwan.

As a result, the CCP was able to proclaim the founding of the People's Republic of China, a new Chinese state. While Taiwan's current Tsai Ing-wen government argues that Taiwan is already an independent country as the Republic of China (ROC), China now contends that it is a province of the People's Republic of China (PRC).

Learn more about Taiwan, here:

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The answer is Tropic cancer passes through Taiwan   capital: Taipei

[hope this helps]

If a substance has a half-life of 10 million years, what fraction of the atomsremain after 20 million years?

Answers

answer is 1/4 of the atoms

at 0 years it would be the full amount (X)

at 10 million years you have half: X/2

at 20 million years you have 1/4 because: (X/2)/2 will equal 1/4

Answer: 1/4

Explanation:
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A student made the following observations about astronomical bodies. Observation 1: Mars reverses its direction of motion in the sky. Observation 2: The stars appear brighter at different times of the year. Which observation(s) can be explained using the heliocentric model?A. Only observation 1B. Only observation 2C. Both observation 1 and observation 2D. Neither observation 1 nor observation 2
What do you think caused volcanoes along the western coast of South America to form?
How do the plates moving cause earthquakes and tsunamis?
What happens to ice as it warms up