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Zepler [3.9K]
3 years ago
14

1. Read the section in your textbook "Sources from the Past

Physics
1 answer:
posledela3 years ago
8 0

Answers

3) Since the Industrial Revolution began around 1750, human activities (powered mostly by fossil fuels) have contributed substantially to climate change by adding CO2 and other heat-trapping gases like methane and the ozone depleting gases like the chloro-floro-carbons to the atmosphere. These greenhouse gas emissions have increased the greenhouse effect and caused Earth's surface temperature to rise.

4) Resources are distributed in different ways and in different amounts throughout the world. Often as a result of past geologic processes such as volcanic activity or tectonic movement, this unequal distribution means that various quantities of certain resources like marine resources, arable land, minerals, etc. are only available to some people. The distribution of natural resources depends upon many physical factors like land, climate and altitude. The distribution of these resources is unequal because these factors differ from place to place on earth. One of the most striking examples of the unequal distribution of resources on the planet is the existence of chronic hunger in some parts of the world and the undevelopement of some places due to lack of natural resources availability. Increased international trade from the removal of trade barriers has narrowed down resources distribution among and within some nation states. Many wealthier countries export non-land-intensive goods and services in return for agricultural and animal products amongst others examples.

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A rocket takes off from Earth. It travels 825km in 75 seconds. What is the
Naya [18.7K]

Answer:

11 km/s

Explanation:

v=s/t

v=825km/75s

v=11km/s

4 0
3 years ago
After getting a haircut, Joey’s barber spins him around in his barber’s chair 2 times per second. Is period or frequency given?
Rzqust [24]

Answer:

Explanation:

This figure given is the frequency; 2 times per second represents frequency.

What is frequency?

  • It is the number of times per seconds something goes past or around another.

 it is expressed as:

            Frequency  = \frac{n}{t}

                  where n is the number of turns

                              t is the time taken

  Therefore, the Barber spinned him 2 times in 1 second.

The period is the inverse of frequency. It is the time taken for a body to go through a point;

              Period  = \frac{t}{n }   = \frac{1}{f}    = \frac{1}{2}s

7 0
3 years ago
In a river, sediment is deposited _____. on the inside bends on the outside bends by fast moving water by oxbows
N76 [4]
Hey There!

Your answer is on the inside bends!

When rocks are deposition on the bottom of the river pressure can cause the rock to break down in sentiments!

If you need anymore help with your work feel free to ask me!

Hope this Helps!
3 0
3 years ago
Which three statements about electromagnetic radiation are true?
grandymaker [24]
I think that numbers one, three, and four are true
3 0
3 years ago
Read 2 more answers
Find the object's speeds v1, v2, and v3 at times t1=2.0s, t2=4.0s, and t3=13s.
Burka [1]
Since this is a distance/time graph, the speed at any time is the slope
of the part of the graph that's directly over that time on the x-axis.

At time  t1 = 2.0 s
That's in the middle of the first segment of the graph,
that extends from zero to 3 seconds.
Its slope is  7/3 .              v1 = 7/3 m/s .

At time  t2 = 4.0 s
That's in the middle of the horizontal part of the graph
that runs from 3 to 6 seconds.
Its slope is zero.
                                     v2 = zero .

At time  t3 = 13 s.
That's in the middle of the part of the graph that's sloping down,
between 11 and 16 seconds.
Its slope is  -3/5 .            v3 = -0.6 m/s .              
7 0
3 years ago
Read 2 more answers
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