Ocean exploration is limited by lack of technology, expense, and favorable weather conditions.
Answer:
Seasons occur because Earth is tilted on its axis relative to the orbital plane, the invisible, flat disc where most objects in the solar system orbit the sun. ... In June, when the Northern Hemisphere is tilted toward the sun, the sun's rays hit it for a greater part of the day than in winter.
Compound light microscope. while adjusting the mirror so that a circle of light can be seen.....giving you a hint at the answer
Answer:
I think it is the first one
Explanation:
I