Answer:
Explanation:
The most primitive tool I used today was the hammer. The hammer is age long in the history of household tools. It is used to hit in nails into walls or woods.
The most advanced tool I have used today is the mobile phone. This is a tool of the 21st century which makes communication easier and faster.
Answer:
Burning fossil fuels spits out carbon dioxide into the air faster than photosynthesis and other processes can scrub it back out.
Explanation:
The leaves!
They have chlorophyll to take energy from the sun and use it.
Answer:
Explanation:
Minnesota's hardwood forests developed in the absence of earthworms. Without worms, fallen leaves decompose slowly, creating a spongy layer of organic "duff." This duff layer is the natural growing environment for native woodland wildflowers.
