Which of the following statements about energy resource availability is true?
a.
nonrenewable energy sources will be completely used within 10 years.
b.
nonrenewable energy sources are readily available in all countries.
c.
the exact amount of nonrenewable energy resources is not currently known.
d.
all of the above are true.

The correct answer would be c. The exact amount of nonrenewable energy resources is not currently known.

Nonrenewable resources are the natural resources which are present in a limited amount on earth. The speed of formation of these resources is much less than the speed they are being utilized.

The exact amount of available nonrenewable resources is not known, however, it has been estimated that they will last in next 25 to 50 years.

the correct answer is b. possesses the characteristic of compartmentalization of organelles, wherein the organelles are bound by membranes.

explanation:

tsd is temerature dependent sex determination.

tsd: it is a type of environmental sex determination in which the temperature experienced during embryonic/ larval development (ambient temperature for development) determine the sex of the offspring.

crocodile displays the tsd where the ambient temperature of the developing egg determines the individual's sex. for example in the american alligator's eggs, incubation at 33 ºc produces mostly males, while incubation at 30 ºc produces mostly females. so if the american alligator's egg will get the ambient temperature (33 degree celcius)during embryonic development from egg, the offspring will be male and same for the female sex determination.