PLEASE HELP WILL MARK BRAINLIEST Using four or more complete sentences, describe why an aging population has caused a shortage of workers in Singapore. PLEASE MAKE THE ANSWER SCHOOL APPROPRIATE

All of the following statements about the biosphere are true except: a. light and heat from the sun do not affect the biosphere. b. the biosphere gets resources from earth's crust, hydrosphere and atmosphere. c. like "biology", the name for the biosphere comes from the greek word for life. d. the biosphere includes all living organisms on earth's surface.

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 do farmers in different regions use different farming techniques