Which sentence best describes the organization of the heart?
A: The heart is an organ made up of different types of tissues, each of which has different types of cells.

When the lighted half of the Moon faces the Sun and the dark half faces Earth, the phase of the Moon viewed from Earth is called the
A: new moon.

Sophie investigates the water supply at her school and the things that affect it. Which action is a direct observation?
A: tasting water from a water fountain

A car has a small gasoline engine combined with a battery-powered electric motor. When the car stops at a red light, the gasoline engine stops running and the electric motor begins working. How does this type of car most likely benefit people?
A:
uses less gasoline