You are presented with the question "What can make a chemical reaction easier to get started?" and the following answer choices: - sweating - ATP - Carbohydrates - heat - a stove - DNA - Enzymes - electron Now knowing that all chemical reactions require activation energy to get started and enzymes are catalysts and accordingly, speed up reactions by decreasing the activation energy, choose the best answer.
Enzymes
(Question)
You are presented with the question "If ethanol were burned, what could be made?" and the following answer choices: - nuclear waste - energy - massive damage - coal tar - Solutions - engines - electricity - plastic Now knowing that biofuel is used to produce electricity by burning and biofuels include ethanol, methanol, biodiesel, biocrude, and methane, choose the best answer.
(Answer)
electricity
Ques: You are presented with the question "green plants convert water, solar energy, and carbon dioxide into what" and the following answer choices: - stone - carbohydrates - soil - Greenhouse gases - Greenhouse gasses - worms - cellulose - food and shelter Now knowing that photosynthesis means producers convert from carbon dioxide, water, and solar energy into carbohydrates for themselves and producers are organisms, such as green plants, that convert light energy into food, choose the best answer.
Ans: carbohydrates
(Q).
You are presented with the question "a graduated cylinder is used to measure what?" and the following answer choices: - density - liquid meters - liquid pounds - liquid ounces - Temperature - grams of powder - kinetic energy - solutes Now knowing that agraduated cylinder is used to measure volume of a liquid and liquid ounces are a measure of volume, and dry pounds are a measure of mass, choose the best answer.
(A).
liquid ounces
Ques:You are presented with the question "heating causes the wind patterns on earth to be what?" and the following answer choices: - evenly distributed - waves - equal - constant - threatened - supersonic - unequal - Tropical Now knowing that unequal heating of Earth 's surface by the Sun causes global wind patterns and unequal absorption of radiation causes unequal heating of the earth's surface, choose the best answer.

Ans:unequal
You are presented with the question "What causes plants to sleep?" and the following answer choices: - winter - heat - lmestone - sweating - photons - Sun - Light - air cools Now knowing that many plants respond to the days growing shorter in the fall by going dormant and plants are dormant in the winter, choose the best answer.
winter