Answer the following question given this paragraph: In 1869, a Russian scientist named Dmitri Mendeleev created the periodic table , which is a way of organizing elements according to their unique characteristics, like atomic number, density, boiling point, and other values ( Figure below ). Each element is represented by a one or two letter symbol. For example, H stands for hydrogen, and Au stands for gold. The vertical columns in the periodic table are known as groups, and elements in groups tend to have very similar properties. The table is also divided into rows, known as periods. Q: Who created the periodic table? Choices: - Isaac Newton - Gregor Mendel - Niels Bohr - dmitri mendeleev A:
dmitri mendeleev
(Question)
Answer the following question given this paragraph: Sea level is the midpoint between high and low tide. It can vary around Earth. Q: What is the common name for the midpoint between high and low tide? Choices: - middle level - clouds level - floods level - sea level A:
(Answer)
sea level
Ques: Answer the following question given this paragraph: A drumlin is a long, low hill of sediments deposited by a glacier. Drumlins often occur in groups called drumlin fields. The narrow end of each drumlin points in the direction the glacier was moving when it dropped the sediments. Q: What is the name of a long and low hill of sediments which have been deposited by a glacier? Choices: - a mountain - a crag - a floodplain - a drumlin A:
Ans: a drumlin
(Q).
Answer the following question given this paragraph: The heart of a resting adult pumps blood at a rate of 5.00 3 L/min. (a) Convert this to cm /s . (b) What is this rate in m 3 /s ? 3. Blood is pumped from the heart at a rate of 5.0 L/min into the aorta (of radius 1.0 cm). Determine the speed of blood through the aorta. Blood is flowing through an artery of radius 2 mm at a rate of 40 cm/s. Determine the flow rate and the volume that passes through the artery in a period of 30 s. The Huka Falls on the Waikato River is one of New Zealand's most visited natural tourist attractions (see Figure 12.29). On average the river has a flow rate of about 300,000 L/s. At the gorge, the river narrows to 20 m wide and averages 20 m deep. (a) What is the average speed of the river in the gorge? (b) What is the average speed of the water in the river downstream of the falls when it widens to 60 m and its depth increases to an average of 40 m?. Q: What does the human heart do? Choices: - destroy blood - use blood - make blood - pump blood A:
(A).
pump blood
Ques:Answer the following question given this paragraph: Soils with lots of very small spaces are water-holding soils. When clay is present in a soil, the soil holds together more tightly. Clay-rich soil can hold more water. Q: The presence of what makes soil hold together more tightly and enables it to hold more water? Choices: - sand - salt - glass - clay A:

Ans:clay
Question: Answer the following question given this paragraph: Q: Sharks are an example of an animal with sharp vision that is nonetheless unable to distinguish what? Choices: - depth - shapes - contrast - color A:
Answer:
color