B shadows
The position of the sun in the sky casts a shadow on a properly placed sundial. This will give you time of day depending where the shadow falls.
Answer: it can help us tackle urban environmental challenges such as stormwater management, pollution reduction, and climate resiliency. Nature also supports the health and well-being of the people that live in cities, offering benefits like stress reduction and opportunities for social connection.
Explanation:
Mountain chains and river systems generally run North-South throughout the continent thus making for formidable barriers to East-West expansion.
The Gulf Of Mexico is the body of water that seperates the US and Cuba
Answer:
Correct answer is Wegener had no compelling mechanism to explain what would cause the continents to move.
Explanation:
A is not correct as through his researches he presented his theory to other scientist.
B is not correct as Wegener was very educated, and was even even working as a professor at University.
C is correct that although he presented his theory, he couldn't explain totally how it happened.
D is not correct as during his lifetime his theory wasn't widely accepted. That happened 20 years after his death.