Which of the following is an example of convection?

a hot object transferring heat to a cooler one

hot air rising and cooler air falling

the rays of the Sun warming the earth

a hot oven warming the air around it

Which of the following is not a organic compound, a - corn oil b - b r o m i n e c - m e t h a n e d - protein

What elements are found in all hydrocarbons? What elements are found in all hydrocarbons? a. hydrogen and helium c. hydrogen and carbon b. carbon and oxygen d. nitrogen and carbon

Why do neither liquids or gases have permanent shapes?

What does Blue litmus paper test for?

What isotope has 13 protons and 14 neutrons? enter the name of the element followed by a hyphen and the mass number (e. g., uranium-234) ?

What is a converging lens

What type of reaction is 2 NO2 - --> 2 O2 + N2

The main source of phosphorous is in: rocks water plants the atmosphe

To what part of a plant does the stem sliver water and nutrients

You place a balloon in a closed chamber at STP. When the balloon doubles in size, what happens to the chamber pressure? A.) The pressure stays the same B.) The pressure doubles C.) The pressure reduced by one half