____________ ____________ occur when the moon, Earth, and sun ...

[stevenposner]

____________ ____________ occur when the moon, Earth, and sun form a right angle, creating the lowest high and
  the highest low tides. Fill in the blank(s) with the appropriate word(s).

Question 2

When the sun, Earth, and moon are in linear alignment, the solar and lunar tides reinforce each other making
  ____________ ____________ the highest high and lowest low tides. Fill in the blank(s) with the appropriate word(s).

[CharlieArnold]

Answer to Question 1

Neap tides

Answer to Question 2

spring tides

[stevenposner]

Thanks for the timely response, appreciate it

[patma1981]

Excellent