<< Chapter < Page Chapter >> Page >

2. Imagine that you live in an area where volcanic eruptions occur. Draw up a list of emergency measures that should be applied before, during and after a volcanic eruption.

3. Collect newspaper articles on any recent volcanic eruption. Discuss it in class and name the consequences thereof.

4. What kind of aid was offered to these people by the rest of the world? Could more have been done?

an interesting fact

The enormous power that exists within the earth is frightening when you think of the death and destruction that is caused when it is revealed.

But it may be possible to think of it in a positive way: We can strive to learn to harness this power to make life on earth more comfortable. Perhaps ways of taming such power and applying it to produce electricity may be found. Think of the impact that such a source of energy will have!

A website like the following has interesting information about volcanoes in store:

(External Link)

Assessment

Learning Outcomes(LOs)
LO 2
GEOGRAPHICAL KNOWLEDGE AND UNDERSTANDINGThe learner will be able to demonstrate geographical and environmental knowledge and understanding.
Assessment standards(ASe)
We know this when the learner:
2.1 describes and explains how natural hazards such as volcanoes, earthquakes and flooding occur, and their impact on human lives and socio-economic activities [people and places];2.2 investigates and explains why some people face a higher risk than others with respect to natural hazards [people and resources];2.3 identifies how risks and hazards can be managed [people and the environment].

Memorandum

Activity:

2. Trace the world map in Figure 4 and indicate the zones where earthquakes occur, in red.

3. Yes, they occur in the same areas where there are volcanoes.

Earthquakes and volcanoes go hand in hand and are found on the periphery of the plates of the earth’s crust – there where the plates move slowly to or from one another. These movements cause earthquakes and/or volcanic eruptions.

Activity 2:

1. a) People

  • Lava devours houses and cities or causes them to crumble.
  • People are engulfed by the lava.
  • People are smothered by the sulphurous gases and ash rain.
  • People drown as a result of tsunamis that develop and flood low-lying land.

b) The environment

  • The natural environment is destroyed completely, or changed by a volcano.
  • Rocks and ash that have been flung into the atmosphere, causes pollution.
  • Lava covers fertile valleys and destroys all the vegetation.
  • Red-hot streams of mud engulf cities and people.
  • Tsunamis develop in the open sea and flood low-lying land or islands.
  • New islands are formed by volcanoes under the sea.
  • The natural environment is transformed. Igneous rock is formed and eventually, over millions of years fertile soil is formed for food production.
  • Precious stones such as diamonds are formed in igneous rock which has financial implications for a country.
  • Hot water springs occur near volcanoes and become tourist attractions. The warm water is also applied to heat buildings.
  1. Learners collect pictures, photos and newspaper clippings of volcanoes and bring them to the class for discussion.

Activity 3:

1. People make an actual decision to live close to a volcano.

Economic considerations such as the availability of jobs and financial prosperity are often more important than the potential danger of living close to a volcano.

2. a) Before a volcano erupts:

Volcanoes are monitored by seismographs and warnings are issued.

Areas should be vacated if early signs are observed.

People living in such areas must ensure that they always have emergency supplies at hand.

b) During a volcanic eruption:

People must leave the area immediately.

Always listen to news broadcasts to follow the course of events.

Wear gas masks as prevention against sulphurous gases.

c) After a volcanic eruption:

Cleaning up operations must take place in the area and relief funding must be supplied by first world countries.

3. Collect newspaper clippings on any recent volcanic eruption and discuss it in class.

4. First world countries supply financial aid after such a disaster.

They also dispatch emergency teams to help with clearing up operations, medical services and food supplies.

Questions & Answers

find the 15th term of the geometric sequince whose first is 18 and last term of 387
Jerwin Reply
I know this work
salma
The given of f(x=x-2. then what is the value of this f(3) 5f(x+1)
virgelyn Reply
hmm well what is the answer
Abhi
how do they get the third part x = (32)5/4
kinnecy Reply
can someone help me with some logarithmic and exponential equations.
Jeffrey Reply
sure. what is your question?
ninjadapaul
20/(×-6^2)
Salomon
okay, so you have 6 raised to the power of 2. what is that part of your answer
ninjadapaul
I don't understand what the A with approx sign and the boxed x mean
ninjadapaul
it think it's written 20/(X-6)^2 so it's 20 divided by X-6 squared
Salomon
I'm not sure why it wrote it the other way
Salomon
I got X =-6
Salomon
ok. so take the square root of both sides, now you have plus or minus the square root of 20= x-6
ninjadapaul
oops. ignore that.
ninjadapaul
so you not have an equal sign anywhere in the original equation?
ninjadapaul
hmm
Abhi
is it a question of log
Abhi
🤔.
Abhi
I rally confuse this number And equations too I need exactly help
salma
But this is not salma it's Faiza live in lousvile Ky I garbage this so I am going collage with JCTC that the of the collage thank you my friends
salma
Commplementary angles
Idrissa Reply
hello
Sherica
im all ears I need to learn
Sherica
right! what he said ⤴⤴⤴
Tamia
hii
Uday
hi
salma
what is a good calculator for all algebra; would a Casio fx 260 work with all algebra equations? please name the cheapest, thanks.
Kevin Reply
a perfect square v²+2v+_
Dearan Reply
kkk nice
Abdirahman Reply
algebra 2 Inequalities:If equation 2 = 0 it is an open set?
Kim Reply
or infinite solutions?
Kim
The answer is neither. The function, 2 = 0 cannot exist. Hence, the function is undefined.
Al
y=10×
Embra Reply
if |A| not equal to 0 and order of A is n prove that adj (adj A = |A|
Nancy Reply
rolling four fair dice and getting an even number an all four dice
ramon Reply
Kristine 2*2*2=8
Bridget Reply
Differences Between Laspeyres and Paasche Indices
Emedobi Reply
No. 7x -4y is simplified from 4x + (3y + 3x) -7y
Mary Reply
how do you translate this in Algebraic Expressions
linda Reply
Need to simplify the expresin. 3/7 (x+y)-1/7 (x-1)=
Crystal Reply
. After 3 months on a diet, Lisa had lost 12% of her original weight. She lost 21 pounds. What was Lisa's original weight?
Chris Reply
what's the easiest and fastest way to the synthesize AgNP?
Damian Reply
China
Cied
types of nano material
abeetha Reply
I start with an easy one. carbon nanotubes woven into a long filament like a string
Porter
many many of nanotubes
Porter
what is the k.e before it land
Yasmin
what is the function of carbon nanotubes?
Cesar
I'm interested in nanotube
Uday
what is nanomaterials​ and their applications of sensors.
Ramkumar Reply
what is nano technology
Sravani Reply
what is system testing?
AMJAD
preparation of nanomaterial
Victor Reply
Yes, Nanotechnology has a very fast field of applications and their is always something new to do with it...
Himanshu Reply
good afternoon madam
AMJAD
what is system testing
AMJAD
what is the application of nanotechnology?
Stotaw
In this morden time nanotechnology used in many field . 1-Electronics-manufacturad IC ,RAM,MRAM,solar panel etc 2-Helth and Medical-Nanomedicine,Drug Dilivery for cancer treatment etc 3- Atomobile -MEMS, Coating on car etc. and may other field for details you can check at Google
Azam
anybody can imagine what will be happen after 100 years from now in nano tech world
Prasenjit
after 100 year this will be not nanotechnology maybe this technology name will be change . maybe aftet 100 year . we work on electron lable practically about its properties and behaviour by the different instruments
Azam
name doesn't matter , whatever it will be change... I'm taking about effect on circumstances of the microscopic world
Prasenjit
how hard could it be to apply nanotechnology against viral infections such HIV or Ebola?
Damian
silver nanoparticles could handle the job?
Damian
not now but maybe in future only AgNP maybe any other nanomaterials
Azam
Hello
Uday
I'm interested in Nanotube
Uday
this technology will not going on for the long time , so I'm thinking about femtotechnology 10^-15
Prasenjit
can nanotechnology change the direction of the face of the world
Prasenjit Reply
At high concentrations (>0.01 M), the relation between absorptivity coefficient and absorbance is no longer linear. This is due to the electrostatic interactions between the quantum dots in close proximity. If the concentration of the solution is high, another effect that is seen is the scattering of light from the large number of quantum dots. This assumption only works at low concentrations of the analyte. Presence of stray light.
Ali Reply
the Beer law works very well for dilute solutions but fails for very high concentrations. why?
bamidele Reply
how did you get the value of 2000N.What calculations are needed to arrive at it
Smarajit Reply
Privacy Information Security Software Version 1.1a
Good
Got questions? Join the online conversation and get instant answers!
QuizOver.com Reply

Get the best Algebra and trigonometry course in your pocket!





Source:  OpenStax, Geography grade 7. OpenStax CNX. Sep 09, 2009 Download for free at http://cnx.org/content/col11021/1.1
Google Play and the Google Play logo are trademarks of Google Inc.

Notification Switch

Would you like to follow the 'Geography grade 7' conversation and receive update notifications?

Ask