What is the main difference between protons and neutrons ? IBAT
Protons have a much smaller mass than neutrons.
O Protons have a much larger volume than neutrons.
Protons have an electrical charge, but neutrons have no charge.
Protons make up the nucleus, but neutrons orbit around the nucleus.

I believe its C. Protons have an electrical charge, but neutrons have no charge.

Explanation:

I'm doing it on edge, Let me know if I'm wrong :)

a gas, having a molecular weight of 13 kg/kmol and a kinematic viscosity of 0.25 cm2/s, flows through a pipe 0.25 m internal diameter and 5 km long at the rate of 0.4 m3/s and is delivered at atmospheric pressure.

warm front forms when a moist, warm air mass slides up and over a cold air mass. as the warm air mass rises, it condenses into a broad area of clouds. a warm front brings gentle rain or light snow, followed by warmer, milder weather.

hope i !