How does heat energy get from the Earth's surface to air?

A) Convection

B) Conduction

C) Emission

D) Radiation

Which of the following organic molecules may have up to 4 levels of structure

Water is harnessed to move a turbine. how is energy converted in this case? kinetic energy is converted to electrical energy. kinetic energy is converted to potential energy. potential energy is converted to kinetic energy.

What are requirements for a hypothesis

Which descriptions refer to cirrus clouds? Select three options. are fluffy are wispy produce snow form at high altitudes form from ice crystals

Why some plasmids contain a gene for resistance to an antibiotic

Which did a large earthquake in Alaska initally cause? which did a large earthquake in Alaska initally cause? A. a volcanic eruption B. flooding C. a landslide D. a tornado

What type of asteroid/meteorite do they believe brought some water to the Earth? a. Stoney Iron b. Iron c. Steel d. Carbonaceous Chondrite

If a cell has 12 chromosomes, how many chromosomes will each of its daughter cells have after mitosis and cytokinesis? and can u explain because i dont understand

A lab technician runs the results of a simple PCR reaction through a gel electrophoresis to test a sample of imported hamburger meat for the presence of a DNA sequence that is known to be found in kangaroos and not in cows.

If Earth was not titted on its axis, what changes would you expect to see in the seasons?