Question

Science Help Please

Answer 1

@Bob @EvieSwan2405

Answer 2

What is the question?

Answer 3

Which of these is an environmental effect of building dams?

increased water temperature upstream

increased fertility downstream

weed growth upstream

sediment builds up downstream

Answer 4

Well when you build a dam, you stop water flow. The more the water, the more the fertility downstream, since the dam is not affecting the area upstream

Answer 5

So A or B?

Answer 6

B

Answer 7

Which of these is an environmental effect of destroying wetlands?

smog

acid rain

loss of habitat

less flooding

Answer 8

I think C?

Answer 9

Yep!

Answer 10

Which of these is an effect of overcrowding in an environment?

species create new habitats to survive

predator-prey relationships change

rate of animal reproduction increases

less energy for consumers due to fewer plants

Answer 11

D?

Answer 12

id go with D too

Answer 13

Indeed. You don't even need help! Nice job.

Answer 14

Just checking lol

Answer 15

How can humans increase the rate of endangered or extinct species?

build and populate more zoos

pass more laws about land use

reduce environmental impacts

introduce new predators to an environment

Answer 16

Im not sure on this one

Answer 17

I would go with A as that would have the most immediate effect in my opinion.

Answer 18

Anymore opinions?

Answer 19

@iosangel

Answer 20

yes, A

Answer 21

A dam is built in a remote area to provide electricity to nearby towns. What is an unlikely effect of the dam?

decreased farming downstream from the infertile soil

decreased aquatic life upstream from warmer temperatures

increased weed growth downstream from clear water

overpopulation of species

Answer 22

C because there wouldn't be any water downstream from the dam, as it blocks it.

Answer 23

Ok lemme submit one sec

Answer 24

I got 2 wrong

Answer 25

which were they?

Answer 26

The first one and the fourth one