Earth orbits once around the Sun about every 365 days. The Moon orbits around Earth. About how many days does it take the Moon to orbit twice around the Sun?

A. 730

B. 365.

C. 64.

D. 29

What would a Munsell scale be used for A) characterizing soil color B) identifying mineral composition in soil samples C) measuring soil density D) identifying soil particle size

What is nuclear fission reaction?

Clara carries a glass of ice water outside on a hot day. she sets it down and rushes inside to answer the phone. when she returns, the ice has melted. what is the best explanation for what happened to the drink?

Which kind of reaction is shown below? 2H2O2 → 2H2O + O2 Select one: A. synthesis reaction B. decomposition reaction C. single replacement reaction D. double replacement reaction

The rate (in cubic feet per hour) that a spherical snowball melts is proportional to the snowball's volume raised to the 2/3 power. (This assumes that the rate snow melts is proportional to the area exposed to the air - - i. e.

Match the following. 1. energy a push or a pull 2. mechanical energy energy of a moving object 3. kinetic energy a force directed away from an object 4. heat the ability to do work 5. work a force moving an object through a distance 6.

Scientists hypothesize that oxygen began to accumulate in earth's atmosphere of living things with the ability to?

The 3 stages of the water cycle are

What is the main natural force responsible for mass movement of rocks and debris?

In a mass spectrometer, a specific velocity can be selected from a distribution by injecting charged particles between a set of plates with a constant electric field between them and a magnetic field across them (perpendicular to the direction of