The answer is A. a light wave
C and D both need water as a medium and sound needs air to vibrate in order to travel. light, on the other hand, does not need a medium
Therefore, it takes 40 sec to perform the work.
Cohesion is the connection made between identical molecules while adhesion is the connection between different ones
Answer:
Newton meter, clocks/watches, tape measure or a ruler, thermometer
Explanation:
Answer:
C
Explanation:
Photosynthesis the process where a plant makes energy to store it and use it and keep aking more to keep itself alive. C is the only one the says photosynthesis and has the right organs and products in the right spaces. The plants leaves are what make the energy. They need the sun (energy source) to make the sugars (energy product) that they need to survive.