• Join over 1.2 million students every month
  • Accelerate your learning by 29%
  • Unlimited access from just £6.99 per month

life processes

Extracts from this document...

Introduction

Dear Dr Philip Bland,

        From one simple acronym we can sum up life as we know it and the several life processes in which all living things need or do for survival, ‘Mrs Nerg’.

M ovement

R espiration

S ensitivity

N utrition

E xcretion

R eproduction

G rowth

Life is an active principle of existence of animals and plants. This needs several key conditions to be carried out.

The planets temperature mustn’t be too dissimilar to earths. Earth currently has a temperature of 13 degrees Celsius that is rapidly increasing from global warming to a temperature of 15 degrees Celsius.

...read more.

Middle

Obviously water is essential for human and planet life. A good water supply is therefore necessary from both river, lakes and seas and the water cycle in the atmosphere will also help this. Without a good water supply, disruption of the eco-system will take place also causing food shortage. So a renewable water source will keep the co-system in harmony and allow survival.

Gravity is needed to pull things down. Similar planet sizes will have a similar amount of gravity therefore a new planet will need to be of similar size.

...read more.

Conclusion

l.  Plants would also be needed to produce oxygen. However there wouldn’t be enough so another oxygen supply should be found aswell.

A magnetic field wouldn’t necessarily be needed as its purpose isn’t very important and something could very easily replace it.

Daylight and darkness hours can change as the people would just have to adapt to them.

Therefore a new planet must have:

  • a temperature between 12 and 16 degrees Celsius
  • water supply
  • similar gravity levels
  • similar atmosphere
  • oxygen supply

                             yours sincerely,

                              Eleanor porter

...read more.

This student written piece of work is one of many that can be found in our GCSE The Earth and Beyond section.

Found what you're looking for?

  • Start learning 29% faster today
  • 150,000+ documents available
  • Just £6.99 a month

Not the one? Search for your essay title...
  • Join over 1.2 million students every month
  • Accelerate your learning by 29%
  • Unlimited access from just £6.99 per month

See related essaysSee related essays

Related GCSE The Earth and Beyond essays

  1. Describe and explain the long-term effects of large-scale deforestation on the earth's atmosphere.

    The major sources of this gas include: fossil fuel combustion for industry, transportation, space heating, electricity generation and cooking; and vegetation changes in natural prairie, woodland and forested ecosystems. Emissions from fossil fuel combustion account for about 65 % of the extra carbon dioxide now found in our atmosphere.

  2. The life cycle of a star.

    o Older stars have outer layers in which hydrogen is the fuel for fusion, while the inner layers helium is the fuel, and for massive stars there may be further layers beneath. Most stars, including the sun become red giants after the end of their equilibrium phase.

  1. Journey to the farthest planet (Pluto).

    Such tremendous mission would require humans to facilitate and accomplish more quicker than robotics mission, argue by most scientists as humans would require to only find life in a deeper scale by retrieving critical samples kilometers down than a few meters which life form mostly, would be destroyed by UV radiations and hydrogen peroxide.

  2. Sustaining life on Mars - the survival of the human race.

    An ecosystem can be described as a system in which multiple organisms benefit directly or indirectly from each other in order to survive. In an ecosystem, mostly all species present depend on the survival of another species. Such is the case with humans.

  • Over 160,000 pieces
    of student written work
  • Annotated by
    experienced teachers
  • Ideas and feedback to
    improve your own work