Answer:
2 half lives
Explanation: 100% then 50% = 1 half life, 50% then 25%=2nd
<em>Choose the correct sentence. *</em>
<em>D I played cricket yesterday.</em>
The Northern European Plain has a maritime climate in some parts with rain all seasons which make it favorable for farming.Some parts of the plain are characteristic of delta plains.Delta plains are very rich in fertile soils and the flat terrain adds to the advantage.
The core i believe is the hottest but it is solid because of all the pressure