You are designing a new home for a cold climate. You want one room in the house to be warmed by the Sun's energy. How will energy from the Sun warm that room? A. The ceiling will absorb the Sun's electromagnetic waves and keep them from entering the room.
B. Concrete flooring will transmit the Sun's electromagnetic waves away from the room.
C. The air in the room will absorb energy from the Sun's electromagnetic waves.
D. Glass will reflect the Sun's electromagnetic waves, preventing them from entering the room.​

In which situation has the independent variable for the experiment been changed? check all that apply. changed from counting the number of duckweed at day 0 and day 14 to counting them every day changed from testing duckweed growth in beakers to testing duckweed growth in large outdoor tanks changed from testing the effect of ph on duckweed growth to testing the effect of light levels on duckweed growth changed from testing the effect of acid ph on duckweed growth to testing the effect of basic ph on duckweed growth

If an athlete runs once around a track, back to the starting line, her average velocity is zero. true or false?

Slab pull” is a type of tectonic plate movement that occurs due to the forces of mantle convection and results in the subduction of the lithosphere true or false