You are presented with the question "What is used for keeping food fresh for a long period of time?" and the following answer choices: - Gardens - an electric stove - A kitchen appliance - Fuel cells - Plates - Air freshener - Electric generators - electricity Now knowing that arefrigerator is used for keeping food fresh for a long period of time and kitchen appliances include refrigerator, choose the best answer.
A kitchen appliance
(Question)
You are presented with the question "Burning garbage can be used to produce what?" and the following answer choices: - warmth - heat energy - a slowing of global warming - gold - electricity - adding heat - mutant protection - carbon dioxide Now knowing that biofuel is used to produce electricity by burning and among the energy sources referred to as biofuels is garbage, choose the best answer.
(Answer)
electricity
Ques: You are presented with the question "what is the basis for natural selection?" and the following answer choices: - hydrogen - root growth - weathering - animals - artificial intelligence - mutation - trees - competition Now knowing that mutation creates new genetic variation in a gene pool and genetic variation is the basis for natural selection, choose the best answer.
Ans: mutation
(Q).
You are presented with the question "What supplies food consumed by people?" and the following answer choices: - air - animals - bacteria - wheat - dust - camels - bamboo - trees Now knowing that grasses supply most of the food consumed by people worldwide and grasses are wheat and wild oats, choose the best answer.
(A).
wheat
Ques:You are presented with the question "What does the intricate event of pollination help plants do?" and the following answer choices: - survival - gene flow - propagate - reproduce - spread seeds - root death - water storage - growth Now knowing that plant reproduction requires pollination and pollination is an intricate series of events which ultimately results in plant reproduction, choose the best answer.

Ans:propagate
Ques: You are presented with the question "What causes high pressure systems?" and the following answer choices: - rainfall - hyperthyroidism - heating liquids - mechanical - chemical changes - sinking air - fossil fuels - our nearest star Now knowing that high pressure systems cause clear weather and clear weather is caused by sinking air, choose the best answer.
Ans:
sinking air