First there was the frostquake. Then there was the firenado. Now, there's thundersnow. Thundersnow is
essentially the same as a thunderstorm; the only
1. A. NO CHANGE
B. that falls.
C. which falls.
D. DELETE the underlined word (ending the
sentence with a period).
difference is that snow falls instead of rain falling. It
occurs when the layer of air closest to the ground is cold
enough to create snow but being warmer than the air
2. F. NO CHANGE
G. but it is warmer
H. but warmer
J. and, also, warmer
above it. When thundersnow occurs at night, lightning
appears brighter because it is reflected against the snow.

Certification programs are offered by all of the following except

An ecosystem is shown in the illustration. assume that human activities have led to a decrease in the number of eagles. a virus attack on rabbits has led to a decrease in their population in the ecosystem. which two sentences describe likely effects on the ecosystem? 1. there’s an increase in the number of snakes and insects and a decrease in the number of frogs. 2. there’s an increase in the number of snakes and insects, and the storks face increased competition for food. 3. there’s an increase in the number of storks and a decrease in the number of snakes and insects. 4. there’s an increase in the number of frogs and a decrease in the number of storks and insects. 5. there’s a decrease in the number of snakes, insects, and frogs.

Land is to arable ; river is a, navigable b, shallow c, presumsor d, water