Why have forest fires in pondersoa pine forest become more damaging to that ecosystem than they were historicaly?

How many galaxies exist?

Stephen Road his bike on a road for a six hour period. On average, keep past 1 km marker every 8 minutes during this period. What was his average speed for this 6 hour period?

What would change if the wave had higher frequency

If element X has 40 protons will it also have 40 electrons

A band of blue light has a velocity of 3.0 x 108 m/sec and a wavelength of 465 nanometers (4.65 x 10? m). What is its frequency?

A 420 W vacuum cleaner is designed to operate 120 V. What is its resistance?

Technician A says that engine parts should be be cleaned before a thorough test can be done to detect cracks. Technician B says that pressure testing can be used to find cracks in blocks or cylinder heads. Who is right?

Which statement describes between a cup if cold water and a cup of boiling water

What role does friction play in the efficiency of machines

What does a map scale 1:25,000 mean