Is the black hole real? if true, can't the scientists send a robot there?

Uranium is a mineral which is used to generate electricity. predict and explain the long term effect on the environment of obtaining and using uranium as a source of energy.

Aplane cuts a pyramid as shown in the diagram. what is the shape of the cross section? a. a hexagon b. a pentagon c. a square d. a triangle

Venezuela’s economy relies most heavily on which of the followingvenezuela’s economy relies most heavily on which of the following? a. oil reserves in places such as the eastern llanos b. cattle ranching in the grasslands c. fertile farmland in the andean highlands d. coffee plantations in mountainous areas