15 points ! no guessing
a watershed is the land that water flows across or through on its way to a stream, lake, wetland, or other body of water. how do scientists recommend preserving a watershed?
a.
encourage agricultural usage in the watershed
b.
preserve forests and wetlands within the watershed
c.
create lakes by damming up rivers in the watershed
d.
increase construction within the watershed

Will mark as brainliest how does a catapult increase the trajectory of an object? ps. answer as if u were a 5th grader

The radius of an atom is closest in size to a

The heater element of a 120 v toaster is a 5.4 m length of nichrome wire, whose diameter is 0.48 mm. the resistivity of nichrome at the operating temperature of the toaster is 1.3 × 10-6 ω·m. the toaster is operated at a voltage of 120 v. (a) what is the power drawn by the toaster? (b) if the cost of electricity is 12 ¢ per kilowatt-hour, and it takes 2 minutes to toast bread, how much does it cost for toasted bread? (c) when the heater element is at room temperature, is the resistivity in the nichrome wire greater than, less than, or equal to it’s resistivity when at operating temperature? explain.