Agriculture is changing the environment. With increased populations, there is a greater demand for food. Which of the following is not an impact of farming?
A) pesticide and fertilizer pollution
B) sediment transport and deposition downstream
C) increased water supply and flooding
D) desertification and deforestation

Which of the following statements is most likely correct about a rock belonging to the jurassic age and a rock belonging to the cambrian age? options: 1) they have identical fossils of organisms that have evolved over time. 2) both have animal fossils preserved in them due to weathering and erosion. 3) they contain different fossils because life on earth has changed through time. 4) the fossils in them were formed on the surface of earth due to exposure to sunlight.

How can an organ, such as the lungs, work for multiple body systems?

Which of these is a provisioning service people get from the ocean