Technological design leads to the development and innovation of new technologies.

which statements represent innovation? check all that apply.

solar panels have increased in efficiency over the past 20 years.

the sun is the primary source of energy for the solar system.

alternative energy sources are one method for meeting energy needs.

amore aerodynamic automobile uses less fuel.

natural selection ensures that only the fittest survive.

a,b,c,d

Explanation:

Solar panels have increased in efficiency over the past 20 years;

Alternative energy sources are one method for meeting energy needs;

A more aerodynamic automobile uses less fuel.

Explanation:

An innovation is something that it's designed that never was used or an improvement in a technology that already exists. So, the innovations at the list are:

Solar panels have increased in efficiency over the past 20 years - The technology was an improvement;

Alternative energy sources are one method for meeting energy needs - New energies sources are being used;

A more aerodynamic automobile uses less fuel - The automobile had an improvement.

c because the action was the roller coaster reaches bottom of hill (action) reaction would be blood tends to drain away from head

hope this !

ice to water 1 water to vapour 2 latent heat