Answer:
The main factors affecting rate of photosynthesis are light intensity, carbon dioxide concentration and temperature.
Explanation:
More rainfall leads to the growth of the grass in a tallgrass prairie to grow so tall.
Answer: Option B.
<u>Explanation:</u>
The tallgrass prairie consists of big and little blue stem, switchgrass, and Indian grass. These were the species which thrive in the area which receive rainfall in large amount. The rainfall in these areas are in the amount of 30-40 inch annual precipitation.
Because these areas receive rainfall in such high amount, the grasses grow very tall. The height of these grasses reach to approximately 6-8 feet in height.
The answer is microscopic life appeared on Earth before flowering plants. This is because according to the label on the second box, microscopic life appeared 4.0 to 3.5 billion years ago, and this is way before the date 250 to 120 millions years ago indicated on the label on the sixth box the flowering plants appeared on Earth.
