External respiration takes place in the ... ?

A) Bronchi

B) Trachea

C) Alveoli

D) Diaphragm

Nuclear power plants are designed to convert nuclear energy into what type of energy? a. electrical b. mechanical c. chemical d. geothermal

A motorbike accelerates from rest at 12m/s in 3s on a level road. If the force is 3000n what is the total mass of the cyclist and the motorbike?

Factors affecting electrical resistance completed lab report

A test rocket at ground level is fired straight up from rest, with a net upward acceleration of 20 m/s^2. After 4 seconds, the motor turns off, but the rocket continues to coast upward. What maximum elevation does the rocket reach?

Why Universe is Created?

What units must be used to express the temperature in the equation for the ideal gas law? explain?

Which region of the Sun is typically about 6,000 C?

How well does the infographic ""Plastics in the Ocean"" present a solution to the problem it describes?

Which of the following would be a good question that could be scientifically investigated? what is the best advice a parent can give a child what is the most appropriate number of dogs per household do cherry popsicles freeze slower than orange

Formulas (equations) : A = 3x and B = 5x + 1 As x increases, does A or B go up faster? if x=0, then A=? if x=1 then B=?