During photosynthesis, plants transform the energy in sunlight into chemical energy by converting molecules of carbon dioxide and water into sugar and
oxygen molecules. What are two reasons scientists might use a model to
represent what happens during photosynthesis?
Yht
A. The steps of photosynthesis occur too quickly to show each one
as it happens.
B. Photosynthesis is too complex to be able to use experiments to
learn how it works.
C. It is too dangerous to study the plants in which photosynthesis
occurs
D. The molecules involved in photosynthesis are too small to see
with an optical microscope.

Imagine you are riding on a yacht in the ocean and traveling at 20 mph. you then hit a golf ball at 100 mph from the deck of the yacht. you see the ball move away from you at 100mph, while a person standing on a near by beach would observe your golf ball traveling at 120 mph (20 mph + 100 mph). now imagine you are aboard the hermes spacecraft traveling at 0.1c (1/10 the speed of light) past mars and shine a laser from the front of the ship. you would see the light traveling at c (the speed of light) away from your ship. according to einstein’s special relativity, how fast will a person on mars observe the light to be traveling? a) 0.1c (1/10 the speed of light) b) c (the speed of light) c)1.1c (c+0.1c)

What was the purpose of the apollo program? to put a man in orbit to launch a spy satellite to launch a space station to put man on the moon

Mixing salt in water is an example of physical change