unit 1 quiz review- APS

Will the earth ever run out of salt? Why is salt such an abundant resource?

it no run out because it's recyclable, it is used in everything we have

What is an ionic bond? Why is chlorine such a reactive element?

an complete valence electron, chlorine have a lot of valence electrons.

What is an essential nutrient? What purpose does salt serve in the human body?

salt,it helps with your blood cells and your tastes can send messages that you have eaten salt.

How does salt preserve food?

it can get bacteria out of your foods.

Describe the process of solution mining.

it recovers minerals from the salt like copper and uranium through an drill and dissolves the minerals.

Why are there such large salt deposits under Kansas?

that's where salt was first discovered in the U.S. and has a salt cave.

Why is salt such a good material for deicing roads?

if it were to snow, it can absorb it since snow is frozen water.

Name three chemicals that can be made from salt

chloric soda, hydrogen,choline

Describe the process of desalination. Why is this process so expensive?

it removes salt from other chemicals and minerals.

Explain how researchers hope to someday produce energy from salt

they would put it in water and an spinny thing would spin for the light bulb to power on.

What type of modern day diet did Hunter-gatherers consume

The Paleo Diet

What did the daily hunter-gatherer diet consist of?

animals and plants

Why do you need fats in your diet?

Fats are important because the essentially give your body energy.(meats,eggs,seafood,seeds,nuts,fruits.etc)

Why was there a lack of health problems during Paleolithic times?

Diseases would spread and raw food.

Why was cooking vital for survival?

It was an way of live and gave them some kind of energy.