There are approximately 7.5 × 10 18 grains of sand on Earth. There are approximately 7 × 10 27 atoms in an average human body. Are there more grains of sand on Earth or atoms in an average human body? How do you know?

Select the correct answer. in the figure, angle k measures 45°. what is the measurement of angle c? a. 38° b. 45° c. 90° d. 98°

Find the values of the variables in the kite

Hormones perform important functions within the reproductive system. during puberty, a number of changes occur in the body. which hormone is responsible for the development of these characteristics in the female? estrogen progestin progesterone testosterone