Answer the following question given this paragraph: Lymph that collects in tissues slowly passes into tiny lymph vessels. Lymph then travels from smaller to larger lymph vessels. Muscles around the lymph vessels contract and squeeze the lymph through the vessels. The lymph vessels also contract to help move the lymph along. Eventually, lymph reaches the main lymph vessels, which are located in the chest. From these vessels, lymph drains into two large veins of the cardiovascular system. This is how lymph returns to the blood. Q: Which part of the wave helps make the wave bend and cause refraction? Choices: - dense part - heavy part - bright part - shallow part A:
shallow part
(Question)
Answer the following question given this paragraph: 9.5 Simple Machines Simple machines are devices that can be used to multiply or augment a force that we apply often at the expense of a distance through which we apply the force. The word for "machine" comes from the Greek word meaning "to help make things easier. " Levers, gears, pulleys, wedges, and screws are some examples of machines. Energy is still conserved for these devices because a machine cannot do more work than the energy put into it. However, machines can reduce the input force that is needed to perform the job. The ratio of output to input force magnitudes for any simple machine is called its mechanical advantage (MA). Q: What is the greek word meaning "to help make things easier"? Choices: - toy - battery - mode - machine A:
(Answer)
machine
Ques: Answer the following question given this paragraph: Solar and wind are still expensive relative to fossil fuels. The technology needs to advance so that the price falls. Q: Solar and wind are still expensive compared to what? Choices: - electricity - coal fuels - batteries - fossil fuels A:
Ans: fossil fuels
(Q).
Answer the following question given this paragraph: Acceleration is a measure of the change in velocity of a moving object. It shows how quickly velocity changes. Acceleration may reflect a change in speed, a change in direction, or both. Because acceleration includes both a size (speed) and direction, it is a vector. Q: What is the measure of change in velocity of a moving object? Choices: - transmission - vibration - kinetic energy - acceleration A:
(A).
acceleration
Ques:Answer the following question given this paragraph: Solids can be divided into amorphous solids and crystalline solids. Q: Solids can be divided into amorphous solids and which other group? Choices: - morphous solids - distinct solids - acrystalline solids - crystalline solids A:

Ans:crystalline solids
Ques:Answer the following question given this paragraph: Air pollution is harmful to human beings and other living things. About 22 million people die from air pollution each year. Breathing polluted air increases the risk of developing lung diseases such as asthma and lung cancer. Breathing bad air also increases the chances of dying from other diseases. Children are most likely to be affected by air pollution. That's because their lungs are still developing and growing. Children also take in more air for their size than adults do. Some air pollutants damage the environment as well as the health of living things. The type of damage depends on the pollutant. Air pollution can also harm the environment. Q: How many people die from air pollution each year? Choices: - 14 million - 17 million - 5 million - 22 million A:

Ans:
22 million