Setting aside the fact that the gift cost only a dollar more than Lydia planned to spend, why do you think Lydia chose to spend the extra money on her sister’s gift?

People keep spending additional units of a particular resource on a want until their marginal benefit is  decreasing withgreater thanless thannot affected by  their marginal cost.

Why would the composition of a meteorite resemble the earth's interior?

Plz asap can someone find the answer or the mark scheme or anything plzzz you : ) ‘it's perfectly understandable that hundreds of millions of people around the world live close to volcanoes’ use evidence to support this statement. (6 marks)