In the 1800’s botanist Asa Gray worked to describe and classifying the plants found in North America.

Bacteria lived in the soil play a vital role in recycling the Carbon and Nitrogen needed by plants.

Agronomists study crop disease, selective breeding, crop rotation, and climatic factors, as well soil content and erosion.

It has been reported that during any twenty-four hour period, a minimal of three hundred North American women start their own businesses.

Deciduous trees are ones that lose its leaves in the autumn and grow new ones in the spring.

No one is in this room now, _    ? 

Margaret Mead achieved worlduide famous through her studies of child-rearing, personality, and culture

In human beings, as in other mammal, hairs around the eyes, in ears and in the nose prevent dust, insects, and other matters from entering these organs.

From the airplane, passengers are able to clearly see the outline of the whole island

Before she moved here, Arlene had been president of the organization since four years.

Why did all the customers at the Red Lion have to pay off pay off their beer that week?

Two unique features of the Arctic they are lack of precipitation and permanently frozen ground.

There exists more than 2,600 different varieties of palm trees, with varying flowers, leaves, and fruits.

Some methods to prevent soil erosion are plowing parallel with the slopes of hills, to plant trees on unproductive land, and rotating crops

There is a local elected council which has responsibility for roads street lighting and other facilities

Peter likes to play ...................volleyball, but he is not.................. good player.

When he took the ticket out of from his pocket, a hundred dollar bill fell to the floor without his noticing

Rice is most important plant in Viet Nam

A thunder usually follows lightning by five seconds for every mile between the flash and the observer.

The modern American dictionary is typically a single compact volume published with a modest price.

If everyone _________, how would we control air traffic? Surely, we'd all be crashing into each other.