Plz hurry it's
an object's weight is dependent upon its location in the universe. why is this true?

a. this is true because weight is the magnitude of gravitational force acting on an object, and since gravitational force varies in different places in the universe, weight also varies.

b. this is true because weight is the amount of matter in an object. because gravity is a force, and force is proportional to weight, both gravity and weight vary in different places in the universe.

c. this is true because gravitational force is the magnitude of weight acting on an object and since weight varies in different places in the universe, gravitational force also varies.

d. this is true because gravitational force is the magnitude of weight acting on an object's mass and since weight varies in different places in the universe, both gravitational force and mass also vary.

What volume of a 0.25 m solution can be made using 0.55 moles of ca(oh)2

You decide that the introduction should also discuss the extremophiles that are referred to as the archaea. these single-cell organisms are considered "extremophiles" due to their ability to survive and reproduce in environmental conditions that would be hostile for most living organisms. archaea species have been isolated from highly acidic sulfur springs, ocean floor thermal vents with temperatures that exceed boiling, and subarctic ice well below freezing. while still considered to be prokaryotic, the archaea have numerous differences that place them apart from the bacteria. choose the characteristics that separate the archaea from other prokaryotic cells. select all that apply. view available hint(s) select all that apply. archaea lack true peptidoglycan in their cell walls. the morphology of the cell is rigid and is geometric in shape, similar to a sphere or cylinder. the cytoplasmic membrane lipids of archaea have branched or ringform hydrocarbon chains. all currently identified and characterized archaea have been linked as the causative agent to an animal or human disease.

How do all types of diffusion/passive transport actually ‘work’ without using even the smallest amount of cellular energy?