Joshua has invented a special greenhouse. By turning a special dial in his new greenhouse, Joshua can choose which type of sunlight can enter the greenhouse. When only ultraviolet light is allowed to enter the greenhouse, what will happen while Joshua is standing inside the greenhouse? Joshua can see objects inside the greenhouse
As time passes, it becomes warmer inside the greenhouse than it is outside
Joshua can see objects outside the greenhouse
As time passes, Joshua begins to sunburn

Imagine that a new planet is discovered with two moons of equal mass: moon a and moon b. the mass of the new planet is greater than the combined mass of its moons. moon a is farther away from the new planet than moon b. what is the planet's gravitational pull on moon a compared to the planet's gravitational pull on moon b? the planet's gravity repels moon a with a greater force than it repels moon b, which is why moon a is farther away. the gravitational pull on moon b is greater than on moon a because moon b is closer to the new planet than moon a. the gravitational pull on moon b is greater than on moon a because moon b is farther away from the new planet than moon a. the gravitational pull on moon a is the same as the gravitational pull on moon b because distance does not affect the planet's gravity.