Question 2:

The________ is the largest known mammal found in oceans.

Question 3:

Plants contain__________, a green pigment necessary for photosynthesis.

Question 4:

A group of frogs is called an ________

Question 5:

_________ is the largest terrestrial ecosystem on earth. It experiences short, and wet summers, while long, and cold winters.

Question 6:

 ________ share similar features with the desert ecosystem.

Question 7:

 ‘Grass’ is the most important plant in the _________ ecosystem.

Question 8:

The _______ is the only bird that can swim, but not fly. It is also the only bird that walks upright.

Question 9:

The ________ is the lowest point on land.

Question 10:

________ around the globe can be classified into hot and dry, semiarid, coastal, and cold.