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
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.

You might be interested in
A ball is thrown horizontally from the top of a building 0.10 km high. The ball strikes the ground at a point 65 m horizontally
aivan3 [116]

Answer:

option B

Explanation:

given,

height of building = 0.1 km

ball strikes horizontally to ground at = 65 m    

speed at which the ball strike = ?

vertical velocity  = 0 m/s

time at which the ball strike

s = \dfrac{1}{2}gt^2

t = \sqrt{\dfrac{2s}{g}}

t = \sqrt{\dfrac{2\times 100}{9.8}}

t = 4.53 s

vertical velocity at the time  4.53 s = g × t = 9.8 × 4.53 = 44.39 m/s

horizontal velocity = \dfrac{65}{4.53} =14.35 m/s

speed of the ball = \sqrt{44.39^2+14.35^2}

                             = 46.65 m/s

hence, the speed of the ball just before it strike the ground = 47 m/s

The correct answer is option B

5 0
3 years ago
Which of the following is not a vector quantity?
maksim [4K]

Answer:

A. Speed

Explanation:

A vector quantity is a quantity which has both magnitude and direction. Here in the given options, speed is a scalar quantity but not the vector quantity.

7 0
3 years ago
How is frequency related to the sound we hear?
Leviafan [203]
Frequency is the vibration of noise and the vibration determines the pitch, which we depend on to be a pitch or frequency we can hear. If it's too high or too low our ears can't hear it 
8 0
3 years ago
Is it possible to apply the same amount of force and do different amounts of work?
Tamiku [17]
Yes, with simple machines
5 0
3 years ago
How does beam spreading affect the temperature on earth and the seasons
navik [9.2K]
Get to school and learn boi
8 0
3 years ago
Other questions:
  • WHAT are the highest frequency and the lowest frequency pets of the EM spectrum?
    10·1 answer
  • “doing the wave” is a common activity in large football stadiums. what type of wave is this?
    5·1 answer
  • Give the reason to the order
    14·2 answers
  • Imagine that Kevin can instantly transport himself between Planet X and Planet Y. Which statement could be said about Kevin in t
    9·2 answers
  • ________are muscles connected to the skeleton.
    6·1 answer
  • A ball drops some distance and gains 30 J of kinetic energy. How much gravitational potential energy did the ball start with? Do
    12·1 answer
  • The term fetus completes which of the following lists to show the correct order of development?
    12·1 answer
  • A 28 kg student stand on the surface of the Earth. What is the magnitude of the
    7·1 answer
  • A 6 cm object is 8 cm from a convex lens that has a focal length of 2.7 cm. The image is 4 cm from the lens.
    6·2 answers
  • A 1300 kg steel beam is supported by two ropes. (Figure
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!