Which system protects us from radiation and the vacuum of space?

a. geosphere

b. hydrosphere

c. atmosphere

d. biosphere

Which country was used for apollo astronaut training because of its moonlike terrain?

What is the part of the cell that controls all the other parts?

Which statement best describes the movement of electrical current when a capacitor is used in a circuit? The discharge of a capacitor changes the direction of the current. Capacitors prevent current from moving through a circuit.

Which statement is true? A. Some molecules may contain no atoms. B. Some elements found in nature exist as molecules. C. Some compounds include only one type of element. D. Some atoms are made of two or more different elements.

A Is a standard amount like a kilometer or gallon when used to communicate different quantities

Voltage can exist without A. current. B. resistance. C. a closed circuit. D. all of these

During a football game, a receiver has just caught a pass and is standing still. Before he can move, a tackler, running at a velocity of 2.60 m/s, grabs and holds onto him so that they move off together with a velocity of 1.30 m/s.

What effect does an increase in temperature have on viscosity?

Aman tosses a jart upward with a velocity of 14.1 m/s a 60° angle

Describe accuracy, precision and best fit line.