You are presented with the question "What is used to preserve food?" and the following answer choices: - salt - Energy - oven - fats - sugar - sodium - marine - bamboo Now knowing that dehydrating food is used for preserving food and food is then dehydrated in slow oven or dehydrator, choose the best answer.
oven
(Question)
You are presented with the question "What do rivers do to rocks?" and the following answer choices: - storing water - to move people - they bend - Make them get bigger - It has no effect on rocks - Polish them - Turn it to soil - protect them Now knowing that soil is formed by rocks eroding and rivers erode the rocks they flow over, choose the best answer.
(Answer)
Turn it to soil
Ques: You are presented with the question "what is also used to remove harmful substances from water before drinking" and the following answer choices: - electricity - pressure - air - bacteria - a pathogens - toxins - Chlorine - Cooking Now knowing that treating water is used to remove harmful substances before drinking and chlorine is also used to treat water, choose the best answer.
Ans: Chlorine
(Q).
You are presented with the question "Which chemical added to water prevents illnesses? " and the following answer choices: - Glucose - evaporation - Chlorine. - sugar - Allergies - sweating - energy - hydration Now knowing that microorganisms can cause infections and chlorination uses liquid chlorine bleach to kill microorganisms, choose the best answer.
(A).
Chlorine.
Ques:You are presented with the question "What creates sound waves?" and the following answer choices: - a curling iron - energy - carpet - animals - dolphins - Gunshots - a couch - a radio Now knowing that aradio converts electrical energy into vibrations and sound Sound waves are caused by vibrations in the air, choose the best answer.

Ans:a radio
Ques:You are presented with the question "if an object is made of a material then that object has what?" and the following answer choices: - objectionable material - A solid geometric shape - kinetic energy - solid, liquid, gas - electromagnetic energy - mass and density - mass hysteria - dense water Now knowing that if an object is made of a material then that object has the properties of that material and every object in the game has mass, density, and material properties, choose the best answer.

Ans:
mass and density