Seasons are caused by the___.

Earth's tilted axis

Earth's elliptical orbit

moon's gravitational pull

Earth's wobble

After noticing changes in your vision, you take a trip to the eye doctor. She tells you that, to improve your vision, she needs to perform surgery to slightly flatten the cornea. What is wrong with your eyes? The retina is not functioning correctly.

Which of the following is a decomposer? A. Grasshopper B. Sunlight C. Tadpole or D. Earthworm

The higher the altitude, the lower the oxygen level in air. Climbers of very tall mountains risk altitude sickness, which is an illness characterized by shortness of breath, weakness, dizziness, and confusion.

3) In your own words, describe how water moves from clouds back to an ocean.

Why did Griffith test to see whether the bacteria recovered from the sick mice in his last experiment would produce smooth or rough colonies in a petri dish?

Which of the following is a true statement? A Only complex instruments can produce reliable data. B Complex instruments produce unreliable data. C Specific instruments are used to collect certain types of data.

Both mother and father contribute the same number of chromosomes to the child they produce. Neither normally contributes more than the other. a. True b. False

How long does weed stay in a skinny person's system

Describe how personality plays a role in exercise, sport, and athletic competition.

How long does it take for sperm to recover?