What does a marine fossil in a desert tell scientists?

A. marine fossil could not be found in the desert

B. the desert was always a desert

C. the area was once under water

D. marine life was once on land

Which type of muscles can you control voluntarily? skeletal O B. cardiac • C. fibers OD. smooth Reset

This is a massive ball of plasma that shines because of thermonuclear fusion in its core.

Calculate the fundamental frequency of a 4 meter organ pipe that is open at both ends. assume that the temperature is 20◦c and the speed of the sound is 344 m/s. answer in units of hz.

What is the volume of a board that measures 1.8cm by 8.8cm by 30.5cm?

Earth is slightly closer to the Sun in January than in July. How does the area swept out by Earth's orbit around the Sun during the 31 days of January compare to the area swept out during the 31 days of July? a. Both areas are the same. b.

The vapor pressure of ethanol at 25 degrees C is 7.83 kPa. Calculate the vapor pressure in atm. Round answer to 3 significant digits.

According to Newton's second law of motion acceleration or an object depends upon the ___ of the object and the ___ Acting on it. I'm confused on what the blanks are. I can't find them.

What is the concentration of H + ions at a pH = 7?

Suppose that Paul D. Trigger fires a bullet from a gun. Will the speed of the bullet leaving the muzzle will be the same as the speed of the recoiling gun? Explain.

A certain rock contains large jagged pieces of other rocks cemented by fine particles what type of rock is this explain