Joshua has invented a special greenhouse that only allows one type of light to
enter the greenhouse. When only ultraviolet light is allowed to enter the
greenhouse, what will happen while Joshua is standing inside the greenhouse?
(HINT: UV light causes ...) *

Joshua can see objects inside the greenhouse

Joshua can see objects outside the greenhouse

As time passes, Joshua begins to sunburn

As time passes, it becomes warmer inside the greenhouse than it is outside

no

explanation:

two jet streams that directly affect the formation of weather in the continental part are a polar jet and a subtropical jet. they are responsible for the transportation of weather systems, which directly affect people. the polar front is the boundary between cold air from the north pole and warmer equatorial air. both the polar jet and the subtropical jet blow from the west to the east, and follow the boundary between cold and warm air.

the strongest jet streams are polar jets, while subtropical jets are somewhat weaker.

the right answer is c. the polar jet stream is generaly stronger than the subtropical jet stream.

c. reserves power to the states and people