Erosion causes a river to become deeper and wider, and water and the Nile River are important to Egypt. Given these facts, erosion causes the Nile to become: among the following options: - Sediment - shallower - less wide - deeper and wider - homogenous - colder and wetter - faster - Physical weathering
deeper and wider

Mutations are essential for evolution to occur, and evolution causes species to change over time. Given these facts, the changes in species that have been seen over time required among the following options: - Energy - exercise - strong microscopes - mutations - gene splicing - warm weather - vegetation - Energy.
mutations

Q: Sperm had to swim from male to female reproductive organs for fertilization, and gametes in males are called sperm, and in women commonly referred to as eggs. Given these facts, what swims from male to female reproductive organs in fertilization among the following options: - ovaries - barnacles - fur seals - eggs - gastropod shells - male gametes - kinetic energy - female gametes
A: male gametes

Question: Rocks interacting with wind over long periods of time causes weathering, and on Earth, rocks are weathered by wind and water, creating soil and sand. Given these facts, what causes rocks to weather among the following options: - seasons - force - erosion - storms - water - heat - lightning - gas
Answer: water

*Question*
Viruses often infect bacteria, and infected birds spread the bacteria in their droppings. Given these facts, viruses often can spread bacteria through what among the following options: - the skin - microscopes - contamination - covering - washing - alveoli - droppings - coating
**Answer**
droppings

(Question)
Mammals conserve body heat with their hair or fur, and bats Bats are mammals with wings. Given these facts, what conserves body heat with their fur among the following options: - hawks - shrews - flying fish - pigs - humans - dogs - crocodiles - bats
(Answer)
bats