Sedimentary rock is converted into metamorphic rock with the addition of
O
A. Kinetic energy
O
O
B. Heat energy
C. Potential energy
O
D. Nuclear energy

Astudent observes a star from two positions of earth in its orbit, in summer and winter, and measures the change in the position of the star. which of these can be best calculated by this method?

Select the correct answer. tay-sachs disease is caused by a mutation in the hexa gene located on chromosome 15. tay-sachs follows an autosomal recessive pattern of inheritance. with the of the diagram, identify which of the offspring will be an unaffected carrier. a diagram showing the genes of parents who are carriers of tay-sachs disease a. a, b, and c b. b and c c. a and d d. a e. d

Scientists have noted that at present the earth is closest to the sun in january and farthest from the sun in july. the reverse will be true in 13,000 years and theearth will then be closer to the sun in july than january. how does earth's current proximity to the sun affect the climate in the northern hemisphere? winters are cooler and summers warmer because of the closer proximity of the earth to the sun.winters are warmer and summers cooler because of the closer proximity of the earth to the sun.winters are shorter and summers longer because of the closer proximity of the earth to the sun.winters are longer and summers shorter because of the closer proximity of the earth to the sun