which fossil would be most useful for evidence of continental drift ?
Answer: Before geologists accepted the continental drift theory, paleontologists knew that certain fossils of ancient land creatures could be found on continents that are separated by thousands of miles of ocean. For example, fossils of ancient reptiles called Cynognathus and Mesosaurus have been found on South America and Africa.
Some geologists are finding evidence that suggests that this one-mile deep canyon may have been cut within the last 4 million years. Assuming a uniform rate of erosion and without considering canyon widening due to slope retreat, calculate how much (in millimeters per year) the Colorado River would have to downcut per year to form this mile-deep canyon in 4 million years. Show your work and clearly indicate what each quantity represents.
The number that Colorado River would have to downcut per year to form the mile-deep canyon in 4 million years is 0.40 millimeter per year.
Depth of canyon = 1 mile
Time taken = 4 million years
Based on the above information, the rate will be:
= Depth / Time taken
= 1 mile / 4 million years
= 0.25 mile / million year
Note that 1 mile = 1609344 millimeter
Therefore, the rate will be:
= (0.25 × 1609344) / 1000000 years
= 0.40 millimeter / years
In conclusion, the rate is 0.40 millimeter per year.
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8.
If sand is 28%, silt is 68%, then what is clay %?
Answer:
4%
Explanation:
Which statement best describes how early African kingdoms fell?
O Leaders abandoned their kingdoms in search of gold.
O People brought armies when they traveled to the kingdoms to study,
O Trading with other kingdoms caused the kingdoms to lose money.
The kingdoms were not united, so they became vulnerable to invasion,
its just D :) ...........
reason for climate change and global warming
Global warming is an aspect of climate change, referring to the long-term rise of the planet's temperatures. It is caused by increased concentrations of greenhouse gases in the atmosphere, mainly from human activities such as burning fossil fuels, and farming.
Climate change is the result of global warming.
The root cause of global warming is the increase of heat-trapping greenhouse gases. These gases help regulate the Earth's heat balance but when in more quantities, it disrupts this balance by retaining more and more heat; thereby gradually increasing the global temperatures. This process is called global warming.
Now the ultimate cause of global warming is anthropogenic activities. There are also natural causes that supplement greenhouse gases in the atmosphere like volcanic eruption. Some reasons are:
Industrialization - More development means more industrialization. More industries mean more greenhouse-gas emissions.Mining and other exploration activities - Large-scale mining and oil explorations require the use of fossil fuels to power them and land degradation and more carbon dioxide in the atmosphere. Open fields of methane gas are also a threat because it a greenhouse gas. The melting of glaciers due to climate change and global warming releases more methane gas as the melting snow uncovers dead frozen organic matter to the surface.Deforestation - Forests are carbon sinks, in the sense that the trees absorb atmospheric carbon and purify the air. Reducing forest cover means more amount of free carbon dioxide in the atmosphere.Urbanization - Countrysides and natural wetlands which are areas of carbon sequestration get turned into urban areas. Urban areas are industrialized as more factories come in and get turned into areas expelling carbon dioxide, unlike natural areas which absorb carbon dioxide.Commercial farming and poultry - Large-scale commercial farming depends on fossil fuels, pesticides, antibiotics, and synthetic fertilizers. Extensive areas of natural area are converted into poultry farms which multiply animals per unit area and release CO2.Overuse of resources and consumerism - This is due to the fact that the manufacture of the items we use and purchase on a daily basis accounts for 45% of all global greenhouse gas emissions.To learn more about the effects of global warming:
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Which choice best expresses the meaning of the simile "The Grass divides as with a Comb—"?
soore, i'm counting on you! everyone mark soore as the brainiest! plzzz
Question 11 options:
The boy drops his comb in the grass next to the snake.
The snake parts the grass the way people part their hair.
The parting of the grass warns the boy the snake is coming.
The snake slithers on top of the grass.
The snake parts the grass the way people part their hair. This one makes the most sense. I hope this helped!
who was the first presindent of kenya
Answer:
Mzee Jomo Kenyatta
Explanation:
have a beautiful day
Why do fronts cause rain?
Answer:
Warm fronts often bring stormy weather as the warm air mass at the surface rises above the cool air mass, making clouds and storms. These clouds form in the warm air that is high above the cool air. As the front passes over an area, the clouds become lower, and rain is likely. i hope i helped :)
Explanation:
Answer:Warm fronts often bring stormy weather as the warm air mass at the surface rises above the cool air mass, making clouds and storms. ... These clouds form in the warm air that is high above the cool air. As the front passes over an area, the clouds become lower, and rain is likely.
answe any ill mark brainlist
What does the wave in Patricia Hubbell's poem "The Black Snake" symbolize?
Question 3 options:
the snake's movement
the movement of the ocean
how the tree sways
how a tire rolls
Answer:
uhhh maybe try A
Explanation:
The city of San Antonio, Texas, is located at approximately 29 degrees North latitude 98 degrees
West longitude. These coordinates are the city's
o absolute location
O winter and summer temperatures
o population figures
o relative location
Answer:
absolute location
Explanation:
when we use coordinates we express a very precise place...
Which of the following was not a characteristic of Phoenician cities, islands,harbors, land jutting or high cliffsp
Answer
Answer is B
Explanation:
7. Which of the following towns are LEAST likely to be impacted in the event of a major lahar
from Mt. Rainier?
a) Orting
b) McKenna
C Ashford
d Enumclaw
What is development aid
Answer:official development assistance
According to 2 sources
Traditionally, development aid referred to what is known as “official development assistance” – the international transfer of public funds either directly from one government to another through bilateral aid, or indirectly through non-governmental organizations or a multilateral agency.
Explanation:
Name three local habitats.you might choose a wet grassy area, or the bark of a tree
Answer:
Hey mate....
Explanation:
This is ur answer....
The pictures are attached below.....Hope it helps!
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the theory of plate tectonic is associated with which of the following?
Most of South America was colonized by Spain & Portugal. An area controlled by the British, French, and Dutch was called the _____.
Question 5 options:
Guianas
Andes
Amazon
Pampas
Answer:
Guianas
Explanation:
hope this helped
Answer:
Guianas
Explanation:
Please Help me and if you do I will give 100 points and Brainily. If you answer and don't help you will get your account reported eventually banned.
Answer:
uhh this is tricky can i go home
Explanation:
How does the use of birth control compare in the developed vs. developing countries? How would this affect HIV transmission?
Answer:
hormonal contraceptive use does not increase the risk of HIV acquisition. indicate a need to change existing recommendations that women at risk of HIV infection may use hormonal contraception with no restrictions. any risk of HIV infection should also use condoms consistently and correctly.
Explanation:
Condoms are the only proven contraceptive method that also protects against STI transmission including HIV.
Which location can be found in the
Eastern Mediterranean region?
A. Brazil
B. Israel
C. Zimbabwe
Answer:
the answer is B Israel
Explanation:
hope this helps :)
Answer:
The answer is Israel.
Explanation:
Hope this helps y'all.
West Virginia has more _____ coal mines than any other state.
underground
above ground
strip
Answer:
Above Ground
Explanation:
Answer:
underground
Explanation:
pls do mark brainliest
What are the disadvantages about living on the moon?
Answer:
There are many disadvantages to living on the moon:
The moon is highly depleted in volatile elementsThe long lunar night would impede reliance on solar powerThe low gravity on the moon could potentially affect human healthThe lack of a substantial atmosphere for insulation results in temperature extremes and could make the Moon's surface like a space vacuumThe lack of an atmosphere increases the chances of a colony being hit by a meteorMoondust can damage equipment and may be toxicGrowing crops on the moon is difficult due to the long lunar night, exposure to solar flares, poor soil, extreme variations in temperature surfacesAre high latitudes in the polar region or tropics?
Answer:
polar region
High latitudes are dominated by floating sea ice covering much of the Arctic ocean in the north, and by the Antarctic ice sheet on the continent of Antarctica in the South.
....... Is the part of the earth that plant and animals dwell
Answer:
biosphere?
Not sure....
MOVEMENT How would you describe the difference between changes in the geographic center and changes in the population center?
Answer:
The mean center of population is the place where an imaginary, flat, weightless, and rigid map of the United States would balance perfectly if all residents were of equal weight. Historically, the movement of the center of population has reflected the expansion of the country, the settling of the frontier, waves of immigration and migration west and south. Since 1790, the center of population has moved steadily westward, angling to the southwest in recent decades.
SOURCE: Geography Division, "Centers of Population Computation for the United States 1950-2010," issued March 2011, available at www.census.gov/geo/www/2010census/centerpop2010/COP2010_documentation.pdf. Consulted for historical reference: Historical Atlas of the United States, National Geographic Society, 1988.
NOTE: The Proclamation Line of 1763 limited British settlement to areas east of the Appalachian Mountains. Alaska and Hawaii were not included in the calculation of the mean center of population until 1950. Puerto Rico was not included in any decade. For more information on the mean center of population, an animated map, and other resources. This graphic is adapted from the "Census Atlas of the United States" published by the Census Bureau in 2007.
Explanation:
Does every person on Earth see the same part of the sky?
Answer:
As well as the Earth's position in space, the area of sky we can see at night is determined by our latitude — how far north or south of the equator we are. Places at the same latitude see the same view of the night sky.
Explanation:
Answer:I'd say no,
Explanation:we are on the complete opposite side of the planet.
True of false: LEDCs have become attractive sites for manufacturing and tertiary services such as help lines because of lower labor costs and access to information technology.
A. True
B. False
What is one likely economic effect of advances in medical technology?
A. need for less trade
B. need for less education
C. printing more money
D. creation of new industries
What is one likely social effect of advances in medical technology?
A. decreased life expectancy
B. decreased patient well-being
C. better health care and well-being
D. better gross domestic product
Answer: 1:true 2: creation of new industries 3: Better health care and well-being
Explanation:
I got 100 everything was right
LEDCs have become attractive sites for manufacturing and tertiary services such as helplines because of lower labor costs and access to information technology. The given statement is True.
The correct options are True, D, and C respectively.
What are the effects of medical technology on present-day society?Society has benefited greatly from medical technology. By giving them access to great healthcare, medical technology has improved many people's quality of life. Recently, new helpful technologies have been developed to aid in the treatment of diseases and support those who are disabled.
Through the reduction of disease, the expansion of employment, and longer life spans, medical technology contributes to human development. In just 35 years, healthcare spending as a percentage of GDP has more than doubled from 7.2% to 16%, or from $75 billion to $2 trillion.
Thus, True, D, and C are the appropriate choices, respectively.
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Which of the following towns could be described as urban? A. Halifax, pop. 9,000 B. Quincy, pop. 100,000 C. Adams, pop. 8,000 D. Ayer, pop. 6,000
Answer: The answer is A. Hope this helped you
What is considered to be the ultimate cause of weather? *
4 points
Changes in seasons as the earth rotates
Changes in altitude and barometric pressure that impact temperature
Unequal heating of Earth's surface from the sun
The lingering effects of the greenhouse gases
Draw an angle that is larger than a right angle
Answer:
\
\
\
\
_______________________
Explanation: