Nephrons are the structural and functional units of the kidneys, and mammalian kidneys form urine in nephrons. Given these facts, where do mammals make urine among the following options: - Kidneys - liver - alveoli - bladder - liquid - organ - toilets - sweating
Kidneys

Earthworm burrows help aerate soil, which is also good for plants, and an earthworm has five hearts. Given these facts, what does the animal that burrows to help aerate soil have among the following options: - Energy - Five hearts - critical organs - resistance - Energy. - food and shelter - fur and fat - four limbs
Five hearts

Conserving resources has a positive impact on the environment, and use of resources affects the environment such as pollution. Given these facts, how do you reduce pollution among the following options: - igniting fuel and oxidiser - transportation technology - wasting - not recycling - burning fossil fuels - converting electricity to heat - water conservation - using less resources
using less resources

Astronauts require preserved food for extended flights, and almost of process food, canned food and preserved food are decreased in their nutritive value. Given these facts, astronauts require what food for extended flights among the following options: - Glucose - canned - squids - complete - sugar - hydration - earthworm - nutrients
canned