D they are both cell division i learned this about 2 months ago
Prices. The more scarce a resource, the pricier it is. so, you can buy less of that resource. This will have income and substitution effects on your financial management.
It is true! Contaminated groundwater is very difficult and sometimes impossible to purify!
Indoor pollution can be reduced by reducing the main causes of this pollution which are: avoid smoking indoor, reducing use of carpeted floors, proper ventilation, keep trash baskets covered, minimizing the use of air-fresheners and irritating perfumes, use exhaust fans. The outdoor pollution can be reduced by minimizing the use of vehicles whose burning fuel contribute a lot to outdoor air pollution, the chimneys of industries and factories should have filters fixed in so that harmful substances may not be exposed to air.