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2 years ago

OD A lizard is an ancestor of a frog.

1 answer:

7 0

The evidence provided by the fossils means that Trilobites became extinct 252 million years ago and lived on Earth more than 521 million years ago.

Basically, a fossil is a remains which gives geologist information about the organism which lived in the past because when those organism dies, they decay and remain on or in the earth surface

Since the trilobite fossils are found in rock that are 521 million years and 252 million years old, then, it means that:

Trilobites became extinct 252 million years ago therefore, no other remains keep existing on rocks earlier.
Trilobites lived on Earth more than 521 million years ago

Therefore, the Option A and D is correct.

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Match the vocabulary word with its definition.

Olin [163]

Hi!

(This is from srahman2 by the way!)

1. AGGREGRATE ECONOMIC BEHAVIOR:

economic wide results of individual behavior

2. DEBT:

money owed or due

3. DEFAULT:

failure to fulfill and obligation monetarily.

4. GROSS DOMESTIC PRODUCT:

the monetary value of all finished goods and services in a country

5. INVESTMENT:

the purchase of goods used to create more wealth

6. NEEDS:

a good or service required for survival

7. UNEMPLOYMENT RATE:

percentage of people in a country willing to work and looking for work by currently unemployed

8. WANTS:

goods or services desired by a person but not required for survival

3 0

2 years ago

Read 2 more answers

In this unit, you learned how humans evolved from their earliest days to the beginning of civilizations in settled communities.

algol [13]

Answer:

Sub-Saharan Africa is a lot like the half empty, half full glass. Although the region has many problems, it holds much hope for the future. On one hand, political and economic problems plague the region.

The region's cities attract a high number of immigrants, increasing diversity as well as the ethnic conflict in the region. Population growth is putting a tremendous strain on the environment. Because of population growth, there are water shortages, unemployment, lack of housing, and inadequate services. On the other hand, there are still large areas of land that can be farmed to feed the population and provide crops for export.

Governments are stabilizing, but government systems lack capacity, and representative government is increasing. Some government systems in the region are unstable. Many governments are unable to provide adequate services. Ethnic diversity and conflict continue to plague the region. On the other hand, most government systems are moving toward democratic, multiparty systems in which leaders are elected.

Economic development is increasing, yet, there are many factors that describe the political situation that Sub-Saharan Africa is facing such as international debt, and weak government systems that hinder economic development. There are positives though. Foreign investment will aid the region's economic development, and globalization will play a role in the region's economic future. Technological advances will also expand employment opportunities. There are several methods dealing with water issues that affect the economics of the region. Water is moved from an area where it is abundant to an area experiencing a shortage, and desalinization is being implemented.

Social services are also improving. Nevertheless, there are a number of regional issues that must be addressed. Health issues in the region include malaria, schistosomiasis, and AIDS. Progress is being made, particularly in urban areas where clinics offer basic care. The status of women also varies throughout the region.

Explanation:

5 0

1 year ago

Humans have built artificial levees along the Mississippi River to protect themselves and their property from floods. However, t

Nikitich [7]

The correct answer is - A. reduce the amount of sediment deposited on floodplains and increase the amount of sediment deposited at the river's mouth.

The Mississippi River is one of the biggest rivers in the world. It is also a river that carries with it very large amount of sediments. The levees built along side it though do not allow the natural process of deposition of sediments on the floodplains of the river. That results in the river carrying the sediments down to the river mouth. Because of this, the river mouth is becoming an ever-growing delta because of the constant deposition of very large amounts of sediments. This also causes lot of the sediments to end in the coastal parts of the sea, which makes the sea waters shallower and murkier, as well as creating new land forms alongside the coast from the deposited material.

4 0

2 years ago

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5. Which of the following is not a by-product of an earthquake? (5 points) Landslide Drought Tsunamis Wildfires

gizmo_the_mogwai [7]

Wildfires is not by-product of an earthquake

3 0

2 years ago

Read 2 more answers

Which evidence did Wegener use to develop the theory of continental drift?

Andreyy89

One of the evidences that Wegener used for his theory of continental drift was that the mountains in North America appear to be part of the same chain of mountains as those in Northern Europe.

Explanation:

Alfred Wegener is considered to be the first person that managed to gather enough evidence and push through the theory of continental drift. This was not an easy task though, as the technology was still not at as developed as it is now, and also there was big skepticism among the other scientists about his suggestions. Wegener was not discouraged, but instead he totally focused his career on the continental drift theory, and eventually it paid off.

One of the evidence that Wegener was using was that the mountains in the eastern part of North America appear to part of the same chain of mountains as those in Northern Europe. Wegener was right, as the Appalachian Mountain Range and the mountains in Scandinavia are actually formed as part of the same orogeny, and they were indeed connected. Over time Europe and North America drifted apart, but the evidence are there to be seen

Other evidence that Wegener used for his theory are:

the matching coastlines of South America and Africa
fossil evidence
geological evidence
mid-Atlantic Ocean ridge

Learn more about the Appalachian Mountain Range brainly.com/question/1746571

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4 0

2 years ago