Until the late 1800s, which of the following sources was used to heat most homes?

fossil fuels

o electricity

biomass

solar energy

Match each type of wave to the way it moves. transverse wave longitudinal wave electromagnetic wave back and forth at right angles to the direction of the motion of the wave arrowRight two alternating waves moving at right angles to each other

Anything that takes up space and has weight is called

Which is the best reason for why we have seasons in Anchorage? a. The Earth orbits the sun b. The Earth is tilted on its axis c. The Earth's atmosphere absorbs solar radiation d. The Earth rotates around the sun

What is the main reason why many nuclear power plants are located near bodies of water? A. to wash wastes out of the power plant B. to be close to shipping lanes for frequent fuel delivery C. to have easy access to a coolant for the reactor D.

If a ball is thrown into the air with a velocity of 36 ft/s, its height (in feet) after t seconds is given by y = 36t - 16t2. find the velocity when t = 1.

Which element has the highest number of protons? a. Calcium b. Argon c. Xenon d. Radon

Which are the most common producers in aquatic ecosystems? a - bacteria b - algae c - fish d - plants

You push a piano 5 meters across the floor with a force of 400 n. how much work have you done?

Monochromatic electromagnetic radiation illuminates an area of a surface. The electric and magnetic fields of the waves are then doubled in magnitude.

The measure of the force of gravity on an object, expressed as mass of the object times acceleration due to gravity is called