Which statement about Earth's core helps explain Earth's magnetic field? -Earth's core is composed of magnets.
-Earth's core is composed of iron and nickel.
-The outer core is solid,
-The inner core is liquid and moving

Jewelweed, a flowering plant, has seed pods that burst open when touched and forcefully eject their seeds. these structures are favorable because they a. can cause genetic changes to occur. b. prevent germination within the seed pod. c. aid in the dispersal of the species. d. attract insects that aid in pollination.

Define the kinetic molecular theory

Areaction is first order with respect to reactant x and second order with respect to reactant y. which statement describes the rate law for this reaction?