Answer: The correct choice is B.
Explanation:
The aorta is the main artery that carries blood away from your heart to the rest of your body. After the blood leaves the heart through the aortic valve, it travels through the aorta, making a cane-shaped curve that connects with other major arteries to deliver oxygen-rich blood to the brain, muscles, and other cells.
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.
Answer:
This is an example of hypothesis testing.
Explanation:
A hypothesis is assumed to find out a causal relationship between two factors. Here, cheese or milk is independent factor and an upset stomach is a dependent factor. Victor wishes to confirm the causal relationship between stomach upset and intake of cheese or milk; so that her lactose intolerance shall be confirmed. Therefore, this activity is a form of hypothesis testing.
