Levees can help prevent issues during a hurricane. What is a levee?

A- an earth wall designed to control water levels

B- an event where people prepare for a fictional disaster

C- a system used to warn people about an emergency

D- a type of radar that detects hurricanes

A100-watt light bulb radiates energy at a rate of 100 j/s. (the watt, a unit of power or energy over time, is defined as 1 j/s.) if all of the light emitted has a wavelength of 525 nm , how many photons are emitted per second?

After watching the video "zinc strip in copper nitrate solution", and reading the instructions, click on the link labeled "start" just below the drawing of the pencil tip. follow the direction to complete the 3x3 grid. answer the below questions for the portion of the activity in which sn(s) is placed in agno3(aq)

40dm3 of gas at 760 torr are heated from 5°c to 50°c what is the new volume