What is the theme in unit 5

Shouldn’t you be able to answer all these if you actually read?

Which statements describe the relationship of earth and its moon? check all that apply.the moon orbits earth following a nearly circular path.the gravitational pull of earth on the moon is parallel to the velocity of the moon.the moon orbits earth in 1 earth day.the same face of the moon always points toward earth.the moon’s orbit is the result of the interaction between the moon’s inertia and the gravitational force from earth

Ibelieve the topic sentence is [1] keeping my mind on my writing is not easy when i stay at my grandfather's ocean-side cottage. hope this : )