What does food provide for us?A. Energy.B. Water.C. WeightD. Vitamin 相关知识点: 试题来源: 解析 A 食物为我们提供能量。选项A "Energy" 意为能量,是食物的主要提供物。其他选项,如水、重量和维生素,虽然食物中可能含有,但并非食物的主要提供物。因此,正确答案为A。反馈 收藏 ...
T hey eat different kinds o f food which chang e into energy. T h e energy is measured in calories. E ven when you ar e asleep, you ar e using energy-about 65 calories an hour. Whil e you ar e at school, or walking home, your body is burning up 100 calories an hour. When ...
Moving it higher than the floor adds energy to it. As it rests on the desk, the pencil has potential energy. The higher it is, the further it could fall. That means the pencil has more potential energy. How Do We Measure Energy? Energy is measured in many ways. One of the basic ...
b. Heat is the measurement of energy transfer and temperature is the transfer of thermal energy. c. 1. The measure of how hot or cold an object is compared to a reference point can be measured in units of ___or ___. 2. ...
Where is the most energy in a food web? What is the source of energy for all food chains? What formula is used to convert potential energy to food energy? What organic molecule stores the greatest amount of energy? Where does the energy of food originally come from?
In a food chain, what happens to the energy as it moves from one level to the next? A. It increases. B. It decreases. C. It stays the same. 相关知识点: 试题来源: 解析 B。在食物链中,能量从一个层级传递到下一个层级时会减少。
We can m(测量) the energy that food provides in calories.2. What followed was to d(测定,确定) what had caused the mass m ation of the monarch.3. E(最终) your child will leave home to lead her own life as a fully independent adult.4. There are no simple s(解决方法) to the ...
(b) Flow of energy in a food chain is unidirectional. View Solution Give reason to justify the following: (a) The existence of decomposers is essential in a biosphere. (b) Flow of energy in a food chain is unidirectional. View Solution ...
Inflation in consumer prices is measured and tracked so that problems in the economy can be pinpointed. If the rate of inflation is outpacing the rate of income growth, the economy is in trouble. Inflation can be negative, too; this is calleddeflation, but it is relatively rare. ...
How PCE Is Measured The BEA reports the total value of personal consumption expenditures collectively every month. Like most economic breakdowns, PCE is split betweenconsumer goodsand services. Durable goods and nondurable goods are components of the consumer goods figure. ...