Question: Choose your answer.

Lemon juice turns litmus paper red, is corrosive and tastes sour. Lemon juice is classified as
My Answer: an acid.

Question: Choose your answer.

The length of daylight changes as the seasons change during the year. What causes these changes in daylight?
My Answer: Earth's tilt on its axis

Question: Choose your answer.

The Andes Mountains in South America formed when an oceanic plate shifted beneath a continental plate. Which other landforms are usually associated with this type of plate boundary?
My Answer: ocean trenches

Question: Choose your answer.

Diseases that can be transmitted between organisms are
My Answer:
infectious.