Does fire use energy?

which of the following best describes the amount of natural resources found here in the united states. coal is the only natural resources found in abundance in the US. Natural resources here are lacking and must all be imported to the us.

What must a magnet always have?

Which situation involves shear? a. convergent boundaries b. isolated rift valleys c. volcanic mountain ranges d. frequent shallow earthquakes e. new rock formations

Which of the following statements concerning language development is not correct? A. Toddlers will often make errors in their early attempts at using words. B. A toddler's early words often represent more objects than actions. C.

The magnitude of the magnetic flux through the surface of a circular plate is 5.90 10-5 T · m2 when it is placed in a region of uniform magnetic field that is oriented at 42.0° to the vertical. The radius of the plate is 8.50 cm.

When one of the electrons of a particular atom undergoes a transition to a quantum state of lower energy, it a) collides with another of its electrons b) exchanges quantum states with another of its electrons c) undergoes a transition to a quantum

What's the symbol for an ionized bromine atom?

What is the hottest layer in the Sun's atmosphere?

Which do you need to calculate the speed of a wave? A. distance and frequency B. distance and time C. time and frequency

What is one of the benefits that scientists have discovered from organisms' daily exposure to radioisotopes? 1. being able to Carbon date fossils 2. X-ray Imaging capability 3. radiation treatment for cancer 4. invention of microwave cooking