Answer:
-Commercial jet aircraft fly in the lower stratosphere to avoid the turbulence which is common in the troposphere below. The stratosphere is very dry; air there contains little water vapor. Because of this, few clouds are found in this layer; almost all clouds occur in the lower, more humid troposphere.
The correct answer is - A) environmental changes decreased the production of food.
During its existence, Rome, did not faced any major challenges from environmental aspect that would reduce the food supplies to a point where it will make a big problem in the country. In times when there were some minor food problems, Rome was just using the food produced in the territories it had under its control, so it was never a major problem during its existence.
Answer:
- The French gave the colonists money and supplies in secret.
- The Spanish closed the Port of New Orleans to the British
Explanation:
The French helped in the Revolutionary war in no small way by providing the American colonists with money and supplies. They did this in secret at first and then became more public about it such that they even sent soldiers to fight alongside the Colonists.
The Spanish also helped by closing off the port of New Orleans to the British and even using it to stage attacks against them. They did this because they were allied to France and therefore in effect, the Colonists as well.
Answer:
I believe the correct answer is A.
Explanation:
cells are the functional units of multicellular organisms.
