Which statement about Earth’s core helps explain Earth’s magnetic field? A: Earth’s core is composed of magnets.
B: Earth’s core is composed of iron and nickel.
C: The outer core is solid.
D: The inner core is liquid and moving.

Simple astronomical telescope the objective lens has a focal length of 75 cm and that of a piece of 5cm of the lenses are 18 cm apart when will be final image of a distant object before

What causes heat transfer in fluids

Compare the quantity in column a with the quantity in column b. pa p a is tangent to the circle at a. column a column b ap a p ax a x question 4 options: the two quantities are equal. the quantity in column a is greater. the relationship cannot be determined from the information given. the quantity in column b is greater.