Ok. just prepare.

during a snow day, marissa noticed a truck spreading salt all over the road. after the truck went past marissa's house, she put on a coat and stuff and went to the edge of the driveway to make an observation.

apparently i need to marissa come up with an investigative question, and the answer is probably gong right over my head. , .

Great amounts of electromagnetic energy from our sun and other bodies in space travel through space. which is a logical conclusion about these electromagnetic waves? their energy must be very their frequency must be very low these waves can travel without a medium they only travel through a vacuum of space

Ageochemist examines a piece of metal that he found in the soil. he performs tests to identify the metal from its density, electrical conductivity, and melting point. which statement best describes his investigation? a. he is determining physical properties that are sufficient to identify the metal.b. he is determining chemical properties that are sufficient to identify the metal.c. he is determining physical properties that are insufficient to identify the metal.d. he is determining chemical properties that are insufficient to identify the metal.

If anyone would be able to me out with these three questions it would be these are from the chem 2202 course.