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Describe stage 4 of the Demographic Transition Model.

The Demographic Transition Model (DTM) shows how birth and death rate affect population. Stage 4 of the model is called the 'low fluctuating' stage and reflects the current situation of EMDCs such as Fra...

Answered by Saul P. • Geography tutor

26410 Views

Find the exact solution, in its simplest form, to the equation 2ln(2x+1) - 10 = 0.

We want to "undo" every step of the equation until we have just x on one side. So first add 10 to each side and then divide both sides by 2 to give ln(2x+1) = 5. Take the exponential of each sid...

Answered by Eleanor B. • Maths tutor

4550 Views

Describe an action potential.

A stimulus excites a neuron by causing the opening of sodium channels.
This causes an influx of sodium which causes the opening of other voltage-gated sodium channels.
This causes the membrane...

Answered by Maciek K. • Biology tutor

5319 Views

What is cracking and how is it done?

Cracking of CRUDE OIL is the breakdown of long-chain hydrocarbons (produced from fractional distillation) to shorter-chain hydrocarbons, which are more economically useful.

Long chain hydroc...

Answered by Maciek K. • Chemistry tutor

2729 Views