Q: Restoring nitrogen to the soil is one reason for what agricultural practice? Read this paragraph and choose the correct option from the provided answers: Choices: - irrigation - plowing - sowing - crop rotation A:
crop rotation

Q: Ultimately, most life forms get their energy from this? Read this paragraph and choose the correct option from the provided answers: Figure 4.2 Ultimately, most life forms get their energy from the sun. Plants use photosynthesis to capture sunlight, and herbivores eat the plants to obtain energy. Carnivores eat the herbivores, and eventual decomposition of plant and animal material contributes to the nutrient pool. Choices: - heat - earth - food - sun A:
sun

Q: Ejaculation occurs when muscle contractions propel sperm from where? Read this paragraph and choose the correct option from the provided answers: Sperm are released from the body during ejaculation. Ejaculation occurs when muscle contractions propel sperm from the epididymes. The sperm are forced through the ducts and out of the body through the urethra. As sperm travel through the ducts, they mix with fluids from the glands to form semen. Hundreds of millions of sperm are released with each ejaculation. Choices: - cervix - penis - urinary track - epididymes A:
epididymes